Alright, fresh from a trip to the WK rules forum once hair10 posted an answer:

Alright just to make sure I have this clear/belabor the obvious:

Damage Control
Remove all objects from the game; Nerfs Debris BFC

none can be brought into the game. Nerfs Rip It Up

All debris tokens are ignored for all purposes except for movement. No Stealth/Bat Ally or hindering terrain modifier on debris markers.

At the beginning of each player’s turn, all destroyed walls and blocking terrain (except Barrier markers erratta: and terrain in occupied squares) are no longer destroyed. Easy enough. Eligible stuff gets rebuilt, but I'm not clear on whether the debris markers are removed...I guess they have to be since the only way we know a wall is down is by the debris markers.

Looks all good to me.

I love this card.
Eff you, you Hypersonic Nanobotters.

Incidentally, Hypersonic Nanobotters was my favourite Herbie Hanock album.

Eff you is right!

"Hey, is that Nightcrawler, Flash, Quicksilver, AND Northstar with Nanobots?"

"Yeah....Why?"

"No reason.........DAMAGE CONTROL #####!"

I love this card it helps me when I play My bro he always has HSS and NB on like 2 or 3 people. lol

i'm glad to say i don't see it very often...the HSS + nanobots thing...though i do see nanobots often enough