I own u
I like pulling out elite 2v2 moves as marine comm. I can follow a gorg by sound or here one gestate by rt. Then I drop the rt it is just about to build. They can never get a rt outside their hive and they spent all their time trying to destroy the rts. When they do get second hive I like to put cc on the rts they are about to build. Its mega elite. It is also worth replacing the rts over and over. Keeping them to 1 rt all game and keeping the occupied far out ways the cost especially as you expand your built rts and upgrades unchecked.
This is a fun game for comm but the other marine is constantly building and not doing much else. It drives the aliens crazy and they get tired of killing rt after rt. This allows for a massive turret farm to protect you from an ono is small games.