Lol, maybe. 1 hex radios rather. Baffout used for 2 hexes xD
Actually, I don't like doors in whole and like destroying door mechanics.
Getting close and personal to it sounds better than being able to destroy it from the distance.
I'd probably want to let items doing that instead of having specific perks. E.g. MPF or superslage.
Let's be honest, door charge is reidiculously expensive and ununiversal. I'd say it should have same mechanics but buffed characteristics.
Also it brings me one more idea: distance door opening from several hexes should be possible, but without destroying it.
I'd probably even let any explosion to do that, though something more specific could be required. Like graviton.
"По направлению открываемой двери" - in direction of opening door