Well, I dislike the fact that there are only 7 weapons, excluding explosives... What I would like is a mod that adds, like.. another 50... Not only will you be dealing with reloads when a horde is charging at you, I want it to be so that you also have to change weapons to find which is most effective in the current situation, or which has more ammo, or larger mags.
I love it when you find weapons in games and feel like "Yes! A better weapon.", why couldn't we have this in
L4D?