I always thought Abe was supposed to be a midtier fighter, and that he would use his burning vengeance angel strength at some point instead of just the acid spitting. Also, his M4 only has semi-automatic fire. It's his M16 which has safe, semi, and burst.
That said, I didn't realize how badly my character outclassed yours. Though, I also assumed you wanted to use a different, stronger character.