High Ground Vacation

Method 1
(You need to be on forge to do this, and have two players +) To get out of high ground a player 2 must get in a mongoose side seater. Player 1 turns into forge mode. Player 1 picks up the mongoose (You HAVE to be in side seater to do this, or you will climb out) You then push it behind the rocks on the left (If you are facing towards the sea) and player 2 climbs out. Then player 2 turns into forge and can climb up to the edges of the map.

Method 2
Spawn a teleporter outside of the map, and spawn a second one out on the map. This way can be easier if you don't understand the first method.