https://www.polygon.com/e3/2018/6/10/17429816/gears-tactics-pc-trailer-e3-2018

Microsoft announced Gears Tactics, a turn-based strategy game set in the Gears of War universe, during the company’s E3 2018 press conference.

The brief snippet of gameplay shows players taking control of multiple COG soldiers and fighting the Locust, the signature enemies of the Gear’s universe. There’s not mention of characters from any of the other Gears of War games, but Tactics be a prequel that takes place 12 years before the first Gears of War game.