Mines as Occupiable Building

[TntAttack]

I think the command is "unprotected garrison" or "occupiable" which is applied on bridges and I figured that mines should work similarly.

Not for infantry of course, although it's debatable if friendly infantry can walk and occupy friendly mines in the first place.

This is for planes, so that players can't use then as mine clearing units.

And if this concept of unit on unit is well possible, perhaps we can extend this to stealth units.