End game needs Major Fix

Hi I would like to express my feelings about the end game mechanics like I guess you guys want to attract hard core players that I'm guessing they just live and sleep on games.

Major fix or please explain why have this game coop if the endgame coop is useless like no revives from your friend. Another thing there's to much 1 shot kill from rare enemies.

The drop rate is really bad in this game and another endgame issue is that if I die I get punish really bad or give revives or make the checkpoints useful and not just for travel.

I hope that you guys look into this matter because you guys had a great start but not having a good ending.