Hi again. I'm back with some other bug reports.
Before I start, the problem about a long time to load was actually a hardware problem. It happens in other maps too sometimes. But now it's fixed. The trouble did happened in another mod I owned too.
So, I found out that in Map select, there's a little slow respond when picking this map, and when I play the game, the layout bug still occur even in the 32 player version. Plus, the aiming had somekind of lag between hip-fire and ironsight/scoping. And, I don't know whether it's because of my hardware or the game. The FPS drops a bit into 15-20 frame per second. When I used other maps, mostly if it's dropped, they didn't happen as low as that.
Thanks in advance. I enjoyed SP so much. So I hope that there's any help for this trouble.