The sweet thing about these is that they carry a front mounted mortar on the hull. It can fire its own smokescreen to get close to patient, and fire again without interupting its repairs when the smoke starts to clear. I also dont need to locate a different unit to provide smoke cover.
I’m gonna have a game soon, with engineers galore. Demolitions men, construction crews, recovery vehicles, demolitions vehicles, rafts, bridging tanks and portable bridge sections, and a few amphibious craft. Thier mission will be to outsmart and outmanouver a superior armored company.
The engineers will be able to make or remove obstacles and even construct bunkers during a prolonged battle.
Of course this means lots of flamethrowers running around too (in haft-tracks).