Jump 1

1. Get on the ledge at the column and jump forward – you are on the narrow beam leading to the teleporter (demo).

Jump 2

2. In lava there is a gap in the wall. If you’ve taken the Battle Suit or just have enough armor, then you can run up to this gap and find there 3 boxes of the BFG ammo (demo).

Jump 3

3. To pick up the BFG and the red armor (demo).

Jump 4

4. Jump at the jump-pad and strafe to the right, thus you’ll be in the corner of the room (demo).