I’m with you on the .45 ACP but I think 9mm Parabellum is more traditional for that particular game.
A good hit with a 45 is better than a couple/three 9mms in my opinion. I suppose you could load up with some of those 147 grain 9mms and do some damage also, but there are more than a couple 9mm pistols that don’t recommend using them, I have a G26 that doesn’t, and a G19 and G17 that can shoot them.