|Game||Ghost Recon: Future Soldier|
"Rising above the waves, this drilling platform is built with no margin for error. Exposed catwalks can dominate the rig's deck, but offer no cover - and from up there, it's a long way down."
What's to say that's not in the short map description? Rig is a small multiplayer map set on a drilling rig. It's small when looking at a map from above, but there's multiple levels. It is possible to shoot from above on the catwalks, but you will also be open to gunfire if you choose to do so. It would be best to use medium range weapons to fire at enemies from above and on the same level.