Empty gun for AI missions that do not need a gun.

There is no "all but gun" RTB winchester option, so air to ground
missions with mixed weapon types will insist on using all of their
bullets after running out of missiles and bombs. Take away their bullets
so they don't strafe a Tor.

Exceptions are made for player flights and for airframes where the gun
is essential like the A-10 or warbirds.

game/db.py

@@ -1603,3 +1603,39 @@ F_16C_50.Liveries = DefaultLiveries
 P_51D_30_NA.Liveries = DefaultLiveries
 Ju_88A4.Liveries = DefaultLiveries
 B_17G.Liveries = DefaultLiveries
+
+# List of airframes that rely on their gun as a primary weapon. We confiscate bullets
+# from most AI air-to-ground missions since they aren't smart enough to RTB when they're
+# out of everything other than bullets (DCS does not have an all-but-gun winchester
+# option) and we don't want to be attacking fully functional Tors with a Vulcan.
+#
+# These airframes are the exceptions. They probably should be using their gun regardless
+# of the mission type.
+GUN_RELIANT_AIRFRAMES: List[Type[FlyingType]] = [
+    AH_1W,
+    AH_64A,
+    AH_64D,
+    A_10A,
+    A_10C,
+    A_10C_2,
+    A_20G,
+    Bf_109K_4,
+    FW_190A8,
+    FW_190D9,
+    F_86F_Sabre,
+    Ju_88A4,
+    Ka_50,
+    MiG_15bis,
+    MiG_19P,
+    Mi_24V,
+    Mi_28N,
+    P_47D_30,
+    P_47D_30bl1,
+    P_47D_40,
+    P_51D,
+    P_51D_30_NA,
+    SpitfireLFMkIX,
+    SpitfireLFMkIXCW,
+    Su_25,
+    Su_25T,
+]