its just incredibly messy. you dont want to put it in the top row because it breaks the pattern of reserving the top row for basic commands. this would mean putting the fire nade in the middle row, and its just a clusterfuck cause no other unit has this many abilities. its never really a good design idea either to dump all this stuff onto one unit, so thats why im saying they would need an overhaul related to their medkits/stun grenades.
Ah, you are right, I forgot the minesweeper. Yeah, can't work, something would need to go.
...though I'd hardly have an issue with gutting concussion for a vet 0 incendiary grenade and moving vet bonuses around to compensate.
(Also point of information, I'm pretty sure Conscripts with Conscript Support Tactics are as bad. Swap salvage, concussion, put away sweeper, cut wire and medkits for merge, molotov, RPG-43, flare mine and hit the dirt)