Doing combos with abilities and flying around. Once you get into some endgame builds I would assume that it will be pretty crazy stuff.
Nobody talks about Warframe's PvP for good reason.I've met more than one person who didn't really realize Warframe even had PvP.
Played it one time, never again. I doubt their ever gonna do that PvP revamp they talked about which I can't blame them for, people are playing mainly for the PvE aspect of the game.