Just Cyberpunk this stage instead, it's much more consistent and reliable in my opinion. However, I don't like doing Cyberpunk stack strats for the most part, so in this run I'll rush the Othom as fast as possible by stacking a few units and then rushing him down with A. Bahamut and Mecha-Bun. Note that I try to get 2 Maglevs out to get rid of the Sir Rel that spawns on base hit. With good timings you should be able to kill the peons quick enough to keep your stack alive and take out Othom quickly. Just remember this isn't 100% consistent in my opinion, and you should really just Cyberpunk this stage.
Manic Mohawk 30
Manic Eraser 30
Eraser +50
Ultra Delinquent 28+2
Fishman 39+1`
Maglev 33
Mecha-Bun 30
Manic Jamiera 33
Jamiera +50
Bahamut 30
Thunderbolt 14