Custom Hydra w/ Mines & Tentamissiles.
Missiles to get in (and because Booyah is already taken), and ink mines to stay in.
You could swap Missiles for Wave Breaker as a mixed reference to S1 vHydra and S2 cHydra, but that would be sort of redundant with Heavy having Wave Breaker as well. Hydra is arguably the only backline that can justifiably have missiles, since it is very much not a special spammer, and needs too much of other stuff (RSU & SSU) to run much SCU for missiles. However, their recon and displacement would still be massively useful.