Hello All,
343 has announced Halo 4 is dropping next week so this is the last chance to complete the endure challenge, at least for the foreseeable future.
I am looking for 3 teammates with a headset on XBOX. I completed the achievement back on 360 and I found the best method is to play on Alpha Site where you can funnel the enemies into 1 spot. Also, we need to save the power weapons until the last wave in each round to kill the brute chieftains. If we stay back and work together, we should cruise to victory. Hit me up on Waypoint or shoot me a message, GT Buckley007.