diff --git a/src/Components/Modules/Gamepad.cpp b/src/Components/Modules/Gamepad.cpp
index c3555fc7..e85e61dd 100644
--- a/src/Components/Modules/Gamepad.cpp
+++ b/src/Components/Modules/Gamepad.cpp
@@ -536,14 +536,13 @@ namespace Components
         if (weaponDef->requireLockonToFire)
             return false;
 
-        if (ps->linkFlags & 4)
+        if (ps->linkFlags & Game::PLF_WEAPONVIEW_ONLY)
             return false;
 
         if (ps->weaponState >= Game::WEAPON_STUNNED_START && ps->weaponState <= Game::WEAPON_STUNNED_END)
             return false;
 
-        // The game checks for these flags. Their meaning is to be researched if necessary.
-        if (ps->eFlags & 0x100C00)
+        if (ps->eFlags & (Game::EF_VEHICLE_ACTIVE | Game::EF_TURRET_ACTIVE_DUCK | Game::EF_TURRET_ACTIVE_PRONE))
             return false;
 
         if (!ps->hasAmmo)
diff --git a/src/Game/Structs.hpp b/src/Game/Structs.hpp
index bad13871..13995f34 100644
--- a/src/Game/Structs.hpp
+++ b/src/Game/Structs.hpp
@@ -1110,6 +1110,40 @@ namespace Game
 		PM_DEAD_LINKED = 0x9,
 	};
 
+	enum playerEFlag
+	{
+		EF_NONSOLID_BMODEL = 0x1,
+		EF_TELEPORT_BIT = 0x2,
+		EF_CROUCHING = 0x4,
+		EF_PRONE = 0x8,
+		EF_NODRAW = 0x20,
+		EF_TIMED_OBJECT = 0x40,
+		EF_VOTED = 0x80,
+		EF_TALK = 0x100,
+		EF_FIRING = 0x200,
+		EF_TURRET_ACTIVE_PRONE = 0x400,
+		EF_TURRET_ACTIVE_DUCK = 0x800,
+		EF_LOCK_LIGHT_VIS = 0x1000,
+		EF_AIM_ASSIST = 0x2000,
+		EF_LOOP_RUMBLE = 0x4000,
+		EF_LASER_SIGHT = 0x8000,
+		EF_MANTLE = 0x10000,
+		EF_DEAD = 0x20000,
+		EF_ADS = 0x40000,
+		EF_NEW = 0x80000,
+		EF_VEHICLE_ACTIVE = 0x100000,
+		EF_JAMMING = 0x200000,
+		EF_COMPASS_PING = 0x400000,
+		EF_SOFT = 0x800000
+	};
+
+	enum playerLinkFlag
+	{
+		PLF_ANGLES_LOCKED = 0x1,
+		PLF_USES_OFFSET = 0x2,
+		PLF_WEAPONVIEW_ONLY = 0x4
+	};
+
 	struct playerState_s
 	{
 		int commandTime;