I've been playing Bullet Echo casually, on and off for a couple years now. My main is Levi but I also branched off into Tess, Sparkle and Bastion. Sparkle and Bastion are Enforcer and Gunner class respectively so in retrospect I shouldn't have done that, since the Bionic set and weapon upgrades carry across different heroes based on class. I'm curious what your opinions are about the different Trooper heroes and how to play them.
Levi, Tess, Stalker, Doc, VI, Satoshi, Graviel and Flynt. Which ones are worth investing in and how do you use them on gameplay? Which weapon upgrades, drones, etc work best with each of them?
What do you think about the Trooper class overall? How does it compare to the others?