"Running Man " by Dasroach.

Running man is an infantry combat training map specially designed to train troops in 4 distinct types of close quarters combat. Simulations take place over urban, trench, forest, and indoor combat situations to prepare combatants for war-time scenarios.

The MEC has broken into the desert facility to attack and kill US troops as they train to send a message to the US commanders. For the troops training it has become a real life fight to the death on their own training ground. The US troops certainly have the advantage on well tread ground, but can they withstand and hold the central tower which dominates the entire area? Once MEC snipers get up on that tower, its going to get nasty for the US.

So its a race to the central tower structure to dominate the height advantage and give valuable intel on the troop movements below...