Protect the Barrier

Lukash wants you to help in protecting the Barrier from the incoming Monolith wave.
== Walkthrough ==
Travel to Cap, the commander of the Freedom group protecting the Barrier, and talk to him. A Monolith group will spawn next to the transition to Radar. Eliminate them, then the next wave, then the third one. Report to Cap. 
== Notes ==
* You don't actually need to camp them at the Barrier. The easier way would be to just rush forward and wait for them to spawn right under your crosshair.
== Bugs ==