A new trailer was released for Outpost: Infinity Siege, which is an upcoming FPS/Tower Defense/Base Building game that releases on March 26th.
From the game's Steam page: Command Mobile Outpost and take XEN Firearm to venture deep into the Signet surveillance off-limit area. Collect unique Weapon Units. Amp up the firepower of the Outpost that fights with you. This is a FTD game - FPS, Tower Defense, Base Building and much more all at the same time.
Outpost: Infinity Siege - Official Release Date Trailer
Video description: Outpost: Infinity Siege is set to be released at 9:00 AM PT on March 26th! Commanders, please enjoy this official trailer, prepare to confront the AI legions, and reclaim our planet.