Game Questions & Answers (Q&A) service lets you ask questions about video games for game consoles or PC games. So ask your Borderlands 2 question for Xbox 360 and get answers from real gamers or answer questions and share your insights and experience with the rest of the gaming community.
Question & Answers
Answer from: newlands
Save and quit. And retry. I had the same thing happen to me, it sucked to have to beat all those people again. But I just went to Start>Quit>Save & Quit. Then loaded it right back up. This time I ran past the enemies and made it to the door, then the Constructor came out and killed me, but it triggered the door to open. I then respawned and slowly made my way back killing enemies, but the door remained open.
Answer from: lil dude
U gotta kill the badass constructor or the constructor (i dont know witch u will have) and then the door should open but if it doesnt then do wat the other guy said save and quit then go back and try again