You can use the float option to go under the map and then come back up on the other side of the wall. I've used this to go to some bugged Classic Doom levels. Apparently if you activate the lever but don't find the entrance, the next time you do the map the lever is gone so there's no way to open the the Classic Doom level entrance on that map.
use the newest trainer.. delete your trainer
there is literally 10 weapons.. can you just use one of the others? also, with easy kills, the weapon is irrelevant..
The weapon is irrelevant? Wow.