This mission is identical, mission tasks and objectives, to the original version of Over the Fence. The Total Stealth set of rules sounds just like the name; you need to make sure you are not seen at all (red warning). If this happens, then it is automatically a game over, so you have to go back to the previous checkpoint. As with the other rulesets, Chicken Hat and Reflex Mode are disabled.

The easiest way to finish this mission, which will still involve you dealing with a few enemies, is to climb the cracked, rock wall on the one end of the compound, which will lead you straight to the upper portion. Remember that you can’t be caught at all, which results in an immediate game over, so you will want to utilize other methods, like Quiet, if needed.