Robots and explosions
Siliconera posted a whole mess of new screenshots for Earth Defense Forces 4, showing off the Air Raiders, a sort of support class providing health and targeting benefits to teammates while using air strikes, automated turrets and mines to fight.
In addition, there are a few shots of a new Hector robot with guns on both arms.
Those Air Raiders sound like they'd be a lot of fun to play with, but I so often wind up playing EDF games alone that I doubt I would get a whole lot of use out of it. Something tells me a lone Air Raider wouldn't hold up too long.