Play the Map
Hangar 21 and you see in the North of the Map the Hangar. If you play Conquest spawn at Flag A. Here you find below in a Container the Button to activating the Titan Engines.
Every 90 seconds you can push the Button. You need a little bit Luck to kill someone. The best Option is the Rush Mode because the last 2 MCOMs are in the Hangar, therefore, you have a bigger Chance to kill someone. (Video is from the XO Version)