Before honest hearts the assault carbine was my only primary weapon (i like to use only one two handed weapon) but in HH i found the .45 smg and now i can't decide.
What do you recommend for me and why?

PS: my gameplay style is just normal, no tank, no stealt.

Assault carbine, just because ammo is cheaper or more plentiful.

With the .45 smg I always catch myself saying something like, "you'll never take me alive, coppers."

Then I punch myself in the face and switch guns.

This. It's much easier to get the ammo for the Assault Carbine unless you stockpile very early on.

Ammo has never been a problem for me, i got like 2500 .45 and 5000 5mm rounds so that isn't really a deciding factor for me :laugh:

over 7000 rounds of .45 for me, or over 20,000 rounds of 5mm?...lol basically at this point, it doesnt really matter, since both of these will help you push all teh way to the end of the game very easily. For me, its power, and accuracy so...neither, I just stick with my Avenger and unique .45 pistol, but between these two choices? .45 for its power and with the mod, and Trigger Discipline, accuracy is pretty good overall.

Both are really good! So just use both! Alternate. But the Assault Carbine is more useful against high DT targets.

I like have one two handed and one one handed gun just for realism's sake.

Then go Assault Carbine + Vance 9MM SMG. Full auto terror!

oh, then go for Assault Carbine, and the unique .45 pistol, pretty much one of the most accurate pistols out there, and packs a hell of a punch.

I have this (brain) problem where I only use smgs in doors. Unless I run out of bullets for what ever rifle I have. I only use assult rifles outdoors. At least that way I have a reason to use both.

If you got the ammo, .45, always.

The .45 pistol is cool but i think the 10mm pistol with ext mag and laser sight and jph ammo.