Some gameplay footage (singleplayer, I think)
Section 8 Video Game, Exclusive Jump Around Gameplay | Game Trailers & Videos | GameTrailers.com
Bored Reoh dug up some gameplay on Youtube
And another, looks like these were recorded on consoles
From what I have seen, you pick where you want to spawn and "drop in" from orbit on that location. There looked to be a few different handheld weapons, including pistols as a backup weapon. Your suits have some abilities, shielding you from damage, brief jump packs for super jumps, and a travel mode that lets you run around at great speed (and tackle people).