Fix broken scripted attacks in some missions

In all three cases, the failure came down to the targets not being declared as enemies to the attackers.

Recent changes to the attack code made it impossible to attack friendly or neutral things with the Lua API's Attack() method. Changing the allegiance of affected parties fixed it, or, in the case of Soviet 02a, using force-attack.

mods/ra/maps/soviet-02a/soviet02a.lua

@@ -91,9 +91,9 @@ WorldLoaded = function()
 
 			-- Don't "shoot" at the barrels if there is noone to shoot
 			if not FleeingUnits[1].IsDead then
-				FleeingUnits[1].Attack(Barrel)
+				FleeingUnits[1].Attack(Barrel, true, true)
 			elseif not FleeingUnits[2].IsDead then
-				FleeingUnits[2].Attack(Barrel)
+				FleeingUnits[2].Attack(Barrel, true, true)
 			end
 		end
 	end)

mods/ra/maps/soviet-03/map.yaml

@@ -60,7 +60,7 @@ Players:
 		Faction: allies
 		ColorRamp: 161,134,236
 		Allies: England, Soviet
-		Enemies: USSR
+		Enemies: USSR, Creeps
 	PlayerReference@USSR:
 		Name: USSR
 		AllowBots: False

mods/ra/maps/soviet-07/map.yaml

@@ -50,7 +50,7 @@ Players:
 		Faction: allies
 		ColorRamp: 161,134,236
 		Allies: Soviet
-		Enemies: USSR
+		Enemies: USSR, Creeps
 	PlayerReference@USSR:
 		Name: USSR
 		AllowBots: False