The damage reduction is ridiculous, why in God's name is chainsawing a human being strengthed creature not killing it? Excuse me?
I remember when the only two things that the chainsaw didn't insta-kill when headshotting was the fleshpound, and the scrake. You still had the challenge of keeping the chainsaw on their head and chest to kill them, it was a slight challenge, but they were the two obstacles.
Now this challenge exists for every creature. You now have the ability to at level five to start out with the slowest and weakest weapon of the melee range, what in the ****?
This essentially makes the bezerker a liability in suicidal, the sharpshooter is going to need to cover him both from the crawlers, and the gorefasts, and the husks. He'll die quickly, and will leave the game and you to deal with extra enemies.
Why in the world, is the second tier weapon, worse than a starting weapon? Why is it that the chainsaw, what is essentially the Bullpup ranged melee weapon, is weaker than all the other melee weapons?
If it was the intention of TWI to stop the doorway tactic, that isn't cool. It's a tactic, and one that is not everlasting, and takes skill and practice. A team can rely on a doorway to be covered and a call out for the fleshpound, and now the husk who will hurt him and his team.
Now, you made one perk useless for another one being even stronger. You have sharpshooter, which essentially turns every weapon into a doomly headshooting slug thrower, in turn for beserker, essentially the funnest and now in my opinion with the katanas balancing, most skill required classes.