Those should be considered really bad cs maps. Militia and siege are just horrible campfests, especially siege, and 747 is just painful to sit through for a full map cycle.

I don't think I've ever had fun playing militia as a CT since it's such an uphill battle and so difficult to win. Your only hope is for the Ts to have sucky snipers or to foolishly rush the CTs and lose too many players. Just think about it, as CT you've only got two options, pipe or open area, and the Ts have the advantage in both and can camp and wait for you to stick your neck out. If you get stopped in the pipes you're going to get flanked. If you don't go into the pipes you're going to get flanked up top. If they rush and succeed in either path the other's screwed. If they don't go into the pipe you still will get blown away by campers watching the two exits. It takes two campers above or one sniper in the pipe to completely hold off the entire CT team. I have so many nightmares of that map...

Siege was a fine beta1 map, but it's just not suited for the evolving game. Money was tough to come by and sniper rifles were rare and cherished back then, but now you can by a scout practially every round if you save your money the first few rounds. Locking down the T spawn and exit is a piece of cake at that point.

747 just sucks. It's a gimmick map that gets old fast.

EDIT SLOTH: I have heard nothing of a militia or assault remake, and I would doubt either of those maps would be remade. They aren't fun (see above for militia and assault is comparable to siege) and there's still a bunch of better maps (inferno, nuke, the one on top of the skyscraper, whatever popular CZ maps there are) that could be remade.