diff --git a/server/gameserver/bullet.cc b/server/gameserver/bullet.cc
index 4cfe72d..5ebdbf5 100644
--- a/server/gameserver/bullet.cc
+++ b/server/gameserver/bullet.cc
@@ -14,6 +14,7 @@
 #include "frag_mitask.h"
 #include "creature.h"
 #include "roomobstacle.h"
+#include "car.h"
 
 Bullet::Bullet():MoveableEntity()
 {
@@ -59,31 +60,46 @@ void Bullet::ProcBomb()
 {
     self_collider_->rad = gun_meta->i->explosion_range();
     std::set<Entity*> objects;
-    TraverseAllLayerHumanList
+    Car* c4_target = nullptr;
+    TraverseCreatures
         (
-         [this, &objects] (Human* hum, bool& stop)
+         [this, &objects, &c4_target] (Creature* c, bool& stop)
          {
-             if (!is_tank_skin || sender.Get()->team_id != hum->team_id) {
+             if (c->dead) {
+                 return;
+             }
+             if (!is_tank_skin || sender.Get()->team_id != c->team_id) {
                  //友军火箭筒伤害取消
                  if ((meta->i->_inventory_slot() == 4 ||
                       meta->i->_inventory_slot() == 5) &&
-                     sender.Get()->team_id == hum->team_id) {
+                     sender.Get()->team_id == c->team_id) {
                      return;
                  }
                  if (meta->i->_inventory_slot() == IS_C4) {
-                     if (hum->IsHuman()) {
+                     if (!objects.empty()) {
+                         stop = true;
                          return;
                      }
+                     if (!c->IsCar()) {
+                         return;
+                     }
+                     c4_target = c->AsCar();
                  }
-                 if (TestCollision(room, hum)) {
-                     objects.insert(hum);
+                 if (TestCollision(room, c)) {
+                     objects.insert(c);
                  }
              }
          });
     TraverseAllLayerEntityList
         (
-         [this, &objects] (Entity* entity, bool& stop)
+         [this, &objects, c4_target] (Entity* entity, bool& stop)
          {
+             if (meta->i->_inventory_slot() == IS_C4) {
+                 if (c4_target) {
+                     stop = true;
+                     return;
+                 }
+             }
              switch (entity->GetEntityType()) {
              case ET_Obstacle:
              case ET_Building:
@@ -151,7 +167,7 @@ void Bullet::ProcBomb()
         {
             //c4
             delay_time = gun_meta->i->missiles_time();
-            ProcC4Bomb(delay_time);
+            ProcC4Bomb(c4_target, delay_time);
         }
         break;
     case IS_SINGAL_GUN:
@@ -387,13 +403,16 @@ void Bullet::ProcMolotorCocktailBomb(int delay_time)
     }
 }
 
-void Bullet::ProcC4Bomb(int delay_time)
+void Bullet::ProcC4Bomb(Car* target, int delay_time)
 {
     if (sender.Get()) {
         FragMiTask* task = new FragMiTask();
         task->room = room;
         task->sender.Attach(sender.Get());
         task->bomb_pos = GetPos();
+        if (target) {
+            task->follow_target.Attach(target);
+        }
         task->gun_meta = gun_meta;
         task->meta = meta;
         task->atk = GetAtk();
diff --git a/server/gameserver/bullet.h b/server/gameserver/bullet.h
index bb3d12c..bae5a82 100644
--- a/server/gameserver/bullet.h
+++ b/server/gameserver/bullet.h
@@ -15,6 +15,7 @@ class Obstacle;
 class Creature;
 class CircleCollider;
 class MovementComponent;
+class Car;
 class Bullet : public MoveableEntity
 {
  public:
@@ -49,7 +50,7 @@ protected:
     void ProcFragBomb(int delay_time);
     void ProcPosionGasBomb(int delay_time);
     void ProcMolotorCocktailBomb(int delay_time);
-    void ProcC4Bomb(int delay_time);
+    void ProcC4Bomb(Car* target, int delay_time);
     void ProcSignalGunBomb(int delay_time);
     void ProcShieldWallBomb(int delay_time);
     void ProcOilBucketBomb(int delay_time);
diff --git a/server/gameserver/creature.h b/server/gameserver/creature.h
index 9f2aacb..2dcfa67 100644
--- a/server/gameserver/creature.h
+++ b/server/gameserver/creature.h
@@ -39,6 +39,7 @@ class Obstacle;
 class RoomObstacle;
 class Hero;
 class Team;
+class Car;
 class Creature : public MoveableEntity
 {
  public:
@@ -135,6 +136,7 @@ class Creature : public MoveableEntity
     bool IsHuman() const;
     bool IsCar() const;
     Human* AsHuman() { return IsHuman() ? (Human*)this : nullptr; };
+    Car* AsCar() { return IsCar() ? (Car*)this : nullptr; };
     virtual void DecHP(float dec_hp, int killer_id, const std::string& killer_name, int weapon_id) {};
     void AddHp(float hp);
 
diff --git a/server/gameserver/frag_mitask.cc b/server/gameserver/frag_mitask.cc
index 1d4cdd1..ca3eb3b 100644
--- a/server/gameserver/frag_mitask.cc
+++ b/server/gameserver/frag_mitask.cc
@@ -14,6 +14,9 @@ void FragMiTask::Done()
     if (!sender.Get()) {
         return;
     }
+    if (follow_target.Get()) {
+        bomb_pos = follow_target.Get()->GetPos();
+    }
     room->frame_event.AddExplosionEx(sender,
                                      meta->i->id(),
                                      bomb_pos,
diff --git a/server/gameserver/frag_mitask.h b/server/gameserver/frag_mitask.h
index b402645..08683eb 100644
--- a/server/gameserver/frag_mitask.h
+++ b/server/gameserver/frag_mitask.h
@@ -16,6 +16,7 @@ class FragMiTask : public MicroTask
     Room* room = nullptr;
     a8::Vec2 bomb_pos;
     CreatureWeakPtr sender;
+    CreatureWeakPtr follow_target;
     MetaData::Equip* gun_meta = nullptr;
     MetaData::Equip* meta = nullptr;
     float atk = 0;