The layout is pleasing and the size is just about right. Smaller groups would encounter pursuits while larger groups would default into a rocket launcher fiasco. The 2x energy pickup was a neat idea. One spot had me think it was a teleporter, but irritatingly it turned out to be nothing. This may cause a curiosity killed the cat situation during play. I encountered a platform that did not return to its normal state as quickly as the others. Finally, the central pillar has raised polygons that should be lowered some to reduce movement confusion.

It's good to see that you're utilizing differential shading properly, although in one or two places it's still not that convincing. In terms of flow, there's no glaring problems, and there's good variation in floor/ceiling heights. We're around a classic Marathon: Infinity level map at this point.

There's something flickering that looks like a teleporter but isn't. Please fix. Also, some platforms aren't as obvious as they could be, and a few raised portions of the map (with ammo) are irritatingly just out of reach. Bad in a net game.