Your mission is to ascend to the surface and restart the engine.
After a crash deep under the sea, nothing is working anymore. You hardly know which way is up, you don’t know how to start the back-up battery, all you know is that your oxygen supply is running out…
You and your unit crash in the middle of inhospitable terrain. Not only are you behind enemy lines, the helicopter is balancing on a cliff and the pilot has disappeared. It’s a long way down and it’s a long way to freedom!