I like it Vance. Global needs a $5 item.
I’m a big fan of combined arms coordination, if you’ve ever studied combat, that’s what it’s all about. Either you’re kicking butt, or you’re getting your butt kicked. And it’s often just a one item response to response to response scenario.
That said, rather than self propelled tank destroyers which really could be considered enveloped inside the “armor” unit.
I would personally prefer to see AT-Guns, There were ALOT more of these in circulation for everyone in WWII.
Attack 2
Def 2
Move 1
Cost 4
Any 1’s force the attacker/defender to select it’s tanks/tank destroyers/mech as casualties first - and in that order.
It becomes a clearly alternate choice for artillery, but you’ll want both, and it won’t intefere with the mobility aspect of mechanized infantry.