I quit a few months after Gunbound Revolution.
...how many new ones did they add?
Revo and S2/World Champion are different~
They have some new ones but are cash-only, not that all of them are THAT good, and you can get them thruogh Random:
Tiburon (looks like a shark, good for maps with ceiling)
Frank (Frankenstein, spits poison, has a lightning bomb for Shot2)
Maya (Native American, throws axes)
Phoenix (Red bird, main icon of GBWC, similar to Aduka but shoots forward)
Here's the new ones you can choose:
Whale (S2 is a whirlwind, multi-hit, very powerful when hitting weakness)
Wolf (Shot 1 causes ATK-02 per shot, Shot 2 is multi-hit, similar to Whale's Shot 2)