[Duel/FFA] Imprisoned

This map is very fun to navigate, movement is fast, easy and smooth. Fun. Map has problems with details and texturing tho. What's with the box-shaped teleporters, is this Quake? They look horrible and were used to death even back in Quake 3 days. The area near one of these teleporters looks terrible, the one on the fourth screenshot in the first post. Left from the teleporter, there's a pipe going straight into the wall like this:

Edit: And texture is misaligned behind those pipes. On the right side, there's another misaligned texture:

Other texturing problems: