I was playing Halo 3: ODST's Firefight mode with three other friends. We were trying to get the achievement Vidmaster Challenge: Endure
(In Firefight, on any mission, pass the 4th Set on 4-player Heroic LIVE co-op). For the first couple of waves, we lost 5 of 7 team shared lives. We gathered ourselves gaining up to 29 lives in the waves to come. After Fending off waves of Covenant for over 3 hours on our one and only playthrough, we got passed the 4th set. All we needed to do was go through the 4th set's bonus round and the achievement would be ours. The bonus round starts and ten seconds later the most unbelievable thing happens. The screen go blank for about 2-5 seconds and we were all brought back to the lobby for no reason. We were like "WTF just happened?!", "No (explitive) way!". Haha damn major fail moment.
(In Firefight, on any mission, pass the 4th Set on 4-player Heroic LIVE co-op). For the first couple of waves, we lost 5 of 7 team shared lives. We gathered ourselves gaining up to 29 lives in the waves to come. After Fending off waves of Covenant for over 3 hours on our one and only playthrough, we got passed the 4th set. All we needed to do was go through the 4th set's bonus round and the achievement would be ours. The bonus round starts and ten seconds later the most unbelievable thing happens. The screen go blank for about 2-5 seconds and we were all brought back to the lobby for no reason. We were like "WTF just happened?!", "No (explitive) way!". Haha damn major fail moment.