Instead of a timer, it should be amount of total turns players can perform in a match.
The purpose of having a timer in games is to prevent long stalemate and create tension between players. It would be nice to have this for the spectators to not having to wait long.
There are two types of match timer I would like to see in this game:
Fighting Game
Like in fighting games, when the amount of turns has reach its limit, the player/team with the highest health points wins.
Late Game
Instead of ending a match, it will spawn a hazardous ring in the outer layer of the map. Staying in it will damage your mech. The ring will get closer to the middle of the map for each turn that has passed. This can create interesting strategy to play around and positioning matters a lot more.
(Here's an example of another game with a timer: https://www.youtube.com/watch?v=uw6xixmGhxg 1:25).
Of course, this should be an option to be toggle on or off in lobby settings.