diff --git a/server/gameserver/airraid.cc b/server/gameserver/airraid.cc
index bd24e7cd..dbc25be1 100644
--- a/server/gameserver/airraid.cc
+++ b/server/gameserver/airraid.cc
@@ -25,7 +25,7 @@ void AirRaid::Init()
         (
          [this] (const mt::AirRaid* air_raid, bool& stop)
          {
-             room_->xtimer.SetTimeoutEx
+             auto timer_wp = room_->xtimer.SetTimeoutWpEx
                  (SERVER_FRAME_RATE * air_raid->time(),
                   [this, air_raid] (int event, const a8::Args* args)
                   {
@@ -36,6 +36,9 @@ void AirRaid::Init()
                       }
                   },
                   &room_->xtimer_attacher_);
+             #ifdef DEBUG
+             timers_.push_back(timer_wp);
+             #endif
          });
 }
 
@@ -104,12 +107,63 @@ bool AirRaid::GenAirRaidPos(const mt::AirRaid* raid_meta, glm::vec3& center)
         }
         center = point;
     }
-    room_->frame_event.AddAirRaid(raid_meta->appear_time(), center, raid_meta->rad());
+    room_->frame_event.AddAirRaid(raid_meta->appear_time(),
+                                  center,
+                                  raid_meta->rad(),
+                                  std::get<0>(raid_meta->_bombing_time)
+                                  );
     return true;
 }
 
 void AirRaid::ExecOneRoundAirRaid(const mt::AirRaid* raid_meta, const glm::vec3& pos)
 {
+    #if 1
+    int continue_time = std::get<0>(raid_meta->_bombing_time);
+    int interval_time = std::get<1>(raid_meta->_bombing_time);
+    int bomb_times = continue_time / std::max(1, interval_time);
+    for (int i = 0; i < bomb_times; ++i) {
+        glm::vec3 born_pos = pos;
+        int num = 1;
+        int delay = i * interval_time * 1000;
+
+        auto bomb_cb =
+            [this, raid_meta, num, delay, born_pos]
+            (int event, const a8::Args* args)
+            {
+                if (a8::TIMER_EXEC_EVENT == event) {
+                    if (room_->IsGameOver()) {
+                        return;
+                    }
+                    glm::vec3 center = born_pos;
+                    room_->map_instance->Scale(center);
+                    glm::vec3 point;
+                    if (room_->map_instance->FindRandomPointAroundCircle
+                        (
+                         center,
+                         100 * room_->GetMapMeta()->scale(),
+                         point
+                         )) {
+                        room_->map_instance->UnScale(point);
+                        for (auto bomb_id : raid_meta->_bomb_ids) {
+                            RoomObstacle* obstacle = room_->CreateObstacle
+                                (
+                                 bomb_id,
+                                 point.x,
+                                 point.y,
+                                 point.z
+                                 );
+                            obstacle->Active();
+                        }
+                    }
+                }
+            };
+
+        room_->xtimer.SetTimeoutEx
+            (delay / FRAME_RATE_MS,
+             bomb_cb,
+             &room_->xtimer_attacher_);
+    }
+    #else
     for (auto& tuple : raid_meta->_raid_waves) {
         int num = std::get<0>(tuple);
         int delay = std::get<1>(tuple);
@@ -154,4 +208,20 @@ void AirRaid::ExecOneRoundAirRaid(const mt::AirRaid* raid_meta, const glm::vec3&
                  &room_->xtimer_attacher_);
         }
     }
+    #endif
 }
+
+#ifdef DEBUG
+
+void AirRaid::NextRaid()
+{
+    for (size_t i = 0; i < timers_.size(); ++i) {
+        auto& timer_wp = timers_.at(i);
+        if (!timer_wp.expired()) {
+            room_->xtimer.ModifyTime(timer_wp, 0);
+            break;
+        }
+    }
+}
+
+#endif
diff --git a/server/gameserver/airraid.h b/server/gameserver/airraid.h
index df9211e3..5bfe5ae0 100644
--- a/server/gameserver/airraid.h
+++ b/server/gameserver/airraid.h
@@ -8,6 +8,9 @@ class AirRaid
     AirRaid(Room* room);
 
     void Init();
+#ifdef DEBUG
+    void NextRaid();
+#endif
 
  private:
 
@@ -17,4 +20,7 @@ class AirRaid
 
  private:
     Room* room_ = nullptr;
+#ifdef DEBUG
+    std::vector<a8::XTimerWp> timers_;
+#endif
 };
diff --git a/server/gameserver/buff/callfunc.cc b/server/gameserver/buff/callfunc.cc
index e288b4a8..41dc3b37 100644
--- a/server/gameserver/buff/callfunc.cc
+++ b/server/gameserver/buff/callfunc.cc
@@ -22,6 +22,7 @@
 
 void CallFuncBuff::Activate()
 {
+    hold_weapon_ = owner->GetCurrWeapon();
     switch ((BuffCallFunc_e)meta->_int_buff_param1) {
     case BuffCallFunc_e::kAddMinorMode:
         {
@@ -179,7 +180,7 @@ void CallFuncBuff::Deactivate()
         break;
     case BuffCallFunc_e::kSetBulletBornOffset:
         {
-            owner->GetCurrWeapon()->bullet_born_offset_ptr = nullptr;
+            hold_weapon_->bullet_born_offset_ptr = nullptr;
         }
         break;
     case BuffCallFunc_e::kImmuneAllMove:
@@ -194,7 +195,7 @@ void CallFuncBuff::Deactivate()
         break;
     case BuffCallFunc_e::kSetGunBuffId:
         {
-            owner->GetCurrWeapon()->buff_id = 0;
+            hold_weapon_->buff_id = 0;
         }
         break;
     case BuffCallFunc_e::kAddEnergyShield:
diff --git a/server/gameserver/buff/callfunc.h b/server/gameserver/buff/callfunc.h
index c070c926..98700fe5 100644
--- a/server/gameserver/buff/callfunc.h
+++ b/server/gameserver/buff/callfunc.h
@@ -56,4 +56,5 @@ class CallFuncBuff : public Buff
     void DecSkillCd();
 
     float hold_param2_ = 0.0;
+    Weapon* hold_weapon_ = nullptr;
 };
diff --git a/server/gameserver/commands.cc b/server/gameserver/commands.cc
index d531c260..75ef0507 100644
--- a/server/gameserver/commands.cc
+++ b/server/gameserver/commands.cc
@@ -8,6 +8,7 @@
 #include "ability.h"
 #include "movement.h"
 #include "android.h"
+#include "airraid.h"
 
 #include "cs_proto.pb.h"
 
@@ -170,6 +171,11 @@ void Player::_CMExecCommand(f8::MsgHdr& hdr, const cs::CMExecCommand& msg)
         #if DEBUG
         room->debug_params[121] = 1;
         #endif
+    } else if (cmd == "next_raid") {
+        #if DEBUG
+        room->debug_params[121] = 1;
+        room->GetAirRaid()->NextRaid();
+        #endif
     } else if (cmd == "autodie") {
         #if DEBUG
         if (cmds.size() >= 2) {
@@ -287,4 +293,7 @@ void Player::_CMExecCommand(f8::MsgHdr& hdr, const cs::CMExecCommand& msg)
             skill->Accelerate(-10000000);
         }
     }
+#ifdef DEBUG
+    a8::XPrintf("exec_cmd:%s\n", {cmd});
+#endif
 }
diff --git a/server/gameserver/creature.cc b/server/gameserver/creature.cc
index 2ed541d5..d8c68bb5 100644
--- a/server/gameserver/creature.cc
+++ b/server/gameserver/creature.cc
@@ -1674,10 +1674,11 @@ void Creature::SetCurrWeapon(Weapon* weapon)
     if (!auto_switch_weapon_timer_.expired()) {
         room->xtimer.Delete(auto_switch_weapon_timer_);
     }
-    if (curr_weapon_ != weapon) {
-        GetTrigger()->TakeonWeapon(curr_weapon_, weapon);
-    }
+    Weapon* old_weapon = curr_weapon_;
     curr_weapon_ = weapon;
+    if (old_weapon != weapon) {
+        GetTrigger()->TakeonWeapon(old_weapon, weapon);
+    }
     if (need_recalc) {
         RecalcDtoAttr();
     }
diff --git a/server/gameserver/frameevent.cc b/server/gameserver/frameevent.cc
index 18d3ce29..dddf9f7d 100644
--- a/server/gameserver/frameevent.cc
+++ b/server/gameserver/frameevent.cc
@@ -21,11 +21,12 @@ void FrameEvent::AddAirDrop(int appear_time, int box_id, const glm::vec3& box_po
     TypeConvert::ToPb(box_pos, airdrop->mutable_pos());
 }
 
-void FrameEvent::AddAirRaid(int appear_time, const glm::vec3& raid_pos, float raid_rad)
+void FrameEvent::AddAirRaid(int appear_time, const glm::vec3& raid_pos, float raid_rad, int continue_time)
 {
     cs::MFAirRaid* airraid = room->frame_event_data->airraids_.Add();
     airraid->set_appear_time(appear_time);
     airraid->set_rad(raid_rad);
+    airraid->set_continue_time(continue_time);
     TypeConvert::ToPb(raid_pos, airraid->mutable_pos());
 }
 
diff --git a/server/gameserver/frameevent.h b/server/gameserver/frameevent.h
index a9083dd9..5b7b916c 100644
--- a/server/gameserver/frameevent.h
+++ b/server/gameserver/frameevent.h
@@ -14,7 +14,7 @@ public:
     Room* room = nullptr;
 
     void AddAirDrop(int appear_time, int box_id, const glm::vec3& box_pos);
-    void AddAirRaid(int appear_time, const glm::vec3& raid_pos, float raid_rad);
+    void AddAirRaid(int appear_time, const glm::vec3& raid_pos, float raid_rad, int continue_time);
     void AddEmote(CreatureWeakPtr& sender, int emote_id);
     void AddShot(CreatureWeakPtr& sender);
     void AddBullet(int bullet_uniid,
diff --git a/server/gameserver/guide.cc b/server/gameserver/guide.cc
index 1ee30861..f3493d88 100644
--- a/server/gameserver/guide.cc
+++ b/server/gameserver/guide.cc
@@ -27,11 +27,7 @@ void Guide::Init(Human* owner)
     UpdateStep();
     owner_->room->xtimer.SetTimeoutEx
         (
-         #ifdef DEBUG
-         SERVER_FRAME_RATE * 1,
-         #else
          SERVER_FRAME_RATE * 60 * 10,
-         #endif
          [this] (int event, const a8::Args* args)
          {
              if (a8::TIMER_EXEC_EVENT == event) {
diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index fbb64c27..24ed1504 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -2581,12 +2581,22 @@ void Human::ProcLootWeapon(AddItemDTO& dto)
         if (FreezeOperate()) {
             return;
         }
+        bool droped = false;
         if (weapons[GUN_SLOT1].weapon_id != 0 && weapons[GUN_SLOT2].weapon_id != 0) {
             if (GetCurrWeapon() == &weapons[GUN_SLOT1]) {
-                DropWeapon(GUN_SLOT2, 1);
+                if (mt::Param::s().pickup_weapon_replace_type) {
+                    DropWeapon(GUN_SLOT2, 1);
+                } else {
+                    DropWeapon(GUN_SLOT1, 1);
+                }
             } else {
-                DropWeapon(GUN_SLOT1, 1);
+                if (mt::Param::s().pickup_weapon_replace_type) {
+                    DropWeapon(GUN_SLOT1, 1);
+                } else {
+                    DropWeapon(GUN_SLOT2, 1);
+                }
             }
+            droped = true;
         }
         bool switch_gun = false;
         Weapon* weapon = TakeonWeapon(dto.item_meta);
@@ -2598,6 +2608,9 @@ void Human::ProcLootWeapon(AddItemDTO& dto)
         if (!weapon) {
             return;
         }
+        if (droped && !mt::Param::s().pickup_weapon_replace_type) {
+            switch_gun = true;
+        }
         weapon->weapon_id = dto.item_id;
         weapon->meta = dto.item_meta;
         weapon->ammo = 0;
diff --git a/server/gameserver/mt/AirRaid.cc b/server/gameserver/mt/AirRaid.cc
index 9c382b94..990a1571 100644
--- a/server/gameserver/mt/AirRaid.cc
+++ b/server/gameserver/mt/AirRaid.cc
@@ -28,6 +28,18 @@ namespace mt
                                      );
             }
         }
+        {
+            std::vector<std::string> strings;
+            a8::Split(bombing_time(), strings, ':');
+            if (strings.size() == 0) {
+                _bombing_time = std::make_tuple(0, 0);
+            } else if (strings.size() == 2) {
+                _bombing_time = std::make_tuple(a8::XValue(strings[0]).GetInt(),
+                                                 a8::XValue(strings[1]).GetInt());
+            } else {
+                abort();
+            }
+        }
     }
 
 }
diff --git a/server/gameserver/mt/AirRaid.h b/server/gameserver/mt/AirRaid.h
index 5242ab4b..f539613c 100644
--- a/server/gameserver/mt/AirRaid.h
+++ b/server/gameserver/mt/AirRaid.h
@@ -15,6 +15,7 @@ namespace mt
 
         std::vector<std::tuple<int, int>> _raid_waves;
         std::vector<int> _bomb_ids;
+        std::tuple<int, int> _bombing_time;
 
     };
 
diff --git a/server/gameserver/mt/Param.cc b/server/gameserver/mt/Param.cc
index 83d9a79c..0a30e7ae 100644
--- a/server/gameserver/mt/Param.cc
+++ b/server/gameserver/mt/Param.cc
@@ -36,6 +36,7 @@ namespace mt
             s_.match_robot_time = GetIntParam("match_robot_time", 0);
             s_.match_choose_time = GetIntParam("match_choose_time", 0);
             s_.match_lock_time = GetIntParam("match_lock_time", 0);
+            s_.pickup_weapon_replace_type = GetIntParam("pickup_weapon_replace_type", 0);
 #if 1
             s_.match_lock_time++;
 #endif
diff --git a/server/gameserver/mt/Param.h b/server/gameserver/mt/Param.h
index 870e1657..09b08679 100644
--- a/server/gameserver/mt/Param.h
+++ b/server/gameserver/mt/Param.h
@@ -25,6 +25,7 @@ namespace mt
         int newbie_room_weapon_id = 0;
         std::vector<int> newbie_room_skills;
         std::vector<const mt::SafeArea*> newbie_room_area;
+        int pickup_weapon_replace_type = 0;
 
         int downed_relive_recover_hp = 0;
 
diff --git a/server/gameserver/mtb/AirRaid.h b/server/gameserver/mtb/AirRaid.h
index e9956e5c..7aaa40ef 100644
--- a/server/gameserver/mtb/AirRaid.h
+++ b/server/gameserver/mtb/AirRaid.h
@@ -16,6 +16,8 @@ namespace mtb
     const std::string bomb_id() const { return bomb_id_; };
     const std::string raid_wave() const { return raid_wave_; };
     float rad() const { return rad_; };
+    const std::string bombing_time() const { return bombing_time_; };
+    float damage() const { return damage_; };
 
     bool has_id() const { return __flags__.test(0);};
     bool has_time() const { return __flags__.test(1);};
@@ -23,6 +25,8 @@ namespace mtb
     bool has_bomb_id() const { return __flags__.test(3);};
     bool has_raid_wave() const { return __flags__.test(4);};
     bool has_rad() const { return __flags__.test(5);};
+    bool has_bombing_time() const { return __flags__.test(6);};
+    bool has_damage() const { return __flags__.test(7);};
 
   protected:
 
@@ -32,9 +36,11 @@ namespace mtb
     std::string bomb_id_;
     std::string raid_wave_;
     float rad_ = 0.0f;
+    std::string bombing_time_;
+    float damage_ = 0.0f;
 
 public:
-    std::bitset<6> __flags__;
+    std::bitset<8> __flags__;
   };
 
 };
diff --git a/server/gameserver/mtb/mtb.all.cc b/server/gameserver/mtb/mtb.all.cc
index 7811255b..e4afea28 100644
--- a/server/gameserver/mtb/mtb.all.cc
+++ b/server/gameserver/mtb/mtb.all.cc
@@ -521,13 +521,15 @@ namespace mtb
     {
       a8::reflect::Class* meta_class = nullptr;
       if (!meta_class) {
-        meta_class = new a8::reflect::Class("AirRaid", 6, 0);
+        meta_class = new a8::reflect::Class("AirRaid", 8, 0);
         meta_class->SetSimpleField(0, "id", a8::reflect::ET_INT32, my_offsetof2(AirRaid, id_));
         meta_class->SetSimpleField(1, "time", a8::reflect::ET_INT32, my_offsetof2(AirRaid, time_));
         meta_class->SetSimpleField(2, "appear_time", a8::reflect::ET_INT32, my_offsetof2(AirRaid, appear_time_));
         meta_class->SetSimpleField(3, "bomb_id", a8::reflect::ET_STRING, my_offsetof2(AirRaid, bomb_id_));
         meta_class->SetSimpleField(4, "raid_wave", a8::reflect::ET_STRING, my_offsetof2(AirRaid, raid_wave_));
         meta_class->SetSimpleField(5, "rad", a8::reflect::ET_FLOAT, my_offsetof2(AirRaid, rad_));
+        meta_class->SetSimpleField(6, "bombing_time", a8::reflect::ET_STRING, my_offsetof2(AirRaid, bombing_time_));
+        meta_class->SetSimpleField(7, "damage", a8::reflect::ET_FLOAT, my_offsetof2(AirRaid, damage_));
       }
       return meta_class;
     }
diff --git a/server/gameserver/room.h b/server/gameserver/room.h
index 05155e48..b557f9b2 100644
--- a/server/gameserver/room.h
+++ b/server/gameserver/room.h
@@ -238,6 +238,7 @@ public:
     int GetReportRoomMode();
     int GetPvpMatchMode();
     void ForceOver();
+    std::shared_ptr<AirRaid> GetAirRaid() { return air_raid_; }
 
 private:
     void ShuaAndroid();
diff --git a/server/gameserver/roomobstacle.cc b/server/gameserver/roomobstacle.cc
index 43665f53..313ebbd4 100644
--- a/server/gameserver/roomobstacle.cc
+++ b/server/gameserver/roomobstacle.cc
@@ -392,16 +392,16 @@ void RoomObstacle::DetachFromMaster()
 {
     if (!detached_) {
         detached_ = true;
+        xtimer_attacher.ClearTimerList();
         if (master.Get()) {
-            xtimer_attacher.ClearTimerList();
             master.Get()->SlaveOnRemove(this);
-            room->grid_service->DelRoomEntity(room, this);
-            if (!IsDead(room)) {
-                Die(room);
-                BroadcastFullState(room);
-            }
-            room->RemoveObjectLater(this);
         }
+        room->grid_service->DelRoomEntity(room, this);
+        if (!IsDead(room)) {
+            Die(room);
+            BroadcastFullState(room);
+        }
+        room->RemoveObjectLater(this);
     }
     if (!list_empty(&entry)) {
         list_del_init(&entry);
diff --git a/server/tools/protobuild/cs_proto.proto b/server/tools/protobuild/cs_proto.proto
index 80afdb78..835515d9 100755
--- a/server/tools/protobuild/cs_proto.proto
+++ b/server/tools/protobuild/cs_proto.proto
@@ -834,6 +834,7 @@ message MFAirRaid
     optional int32 appear_time = 1; //空袭出现时间(毫秒)
     optional MFVec3 pos = 3; //空袭位置
     optional float rad = 4; //空袭半径
+    optional int32 continue_time = 5; //轰炸持续时间,(在空袭出现后!!!)
 }
 
 //buff
diff --git a/server/tools/protobuild/mt.proto b/server/tools/protobuild/mt.proto
index 9eadd4d9..044cbfe3 100755
--- a/server/tools/protobuild/mt.proto
+++ b/server/tools/protobuild/mt.proto
@@ -417,6 +417,8 @@ message AirRaid
     optional string bomb_id = 4;
     optional string raid_wave = 5;
     optional float rad = 6;
+    optional string bombling_time = 7;
+    optional float damage = 8;
 }
 
 message AirLine