I know about putting up shield and instantly melee'ing to save the shield and still be protected. I know if I time the melee right I can even tank bull charges etc.

But what else? Im lvl 22 atm, and the build I follow uses the chainsaw perk where u start with one. But I never know when to use the chainsaw?

Also, when do you charge? Atm I only use it if a teammates down and Im using it to rezz him or save them with temp health. But other than that I just put up the shield and melee instead of charge.

Also whats a good melee weapon? I dont have the zweihander unlocked.