Riptide suicide - Failsafe Detonator in Retaliation Cadre.

I feel like you could almost do more damage yoloing a riptide into the most densely packed area of enemy and it dying than it can shooting (obviously go for shoot then charge or even Torchstar Gambit for move shoot move, 20' range but starting to get CP heavy). Deadly Demise D6, and Failsafe Detonator, any unit in 6' takes D6 mortal wounds. It's a big base and if you can squeeze it in right even hitting 3 units, that's 3D6 mortal wounds which seems pretty disgusting, with the right positioning or the the opponent taking the "bait" and piling in more units to overkill with the giant mech standing in the middle of their army.