Keep door repair
very carefully
You can get close and do it alone, sometimes. More reasonably you can have other players chain their abilities together to provide a few seconds time for everyone to get a few hits in.
You can sometimes hit it once or twice and then back up and heal.
November 15, 2012 – The day a dream died.
Depending on your class, you may not be able to do it alone against a zerg.
I believe all AoE in the game displays a red circle on the ground before it hits. So watching for those might help.
The best way would be to stand in a corner, if possible otherwise, the supply is better spent on defensive sieges such as arrow carts. Things like Guardian’s “3” GS skill will not show as a red circle.
From the outside.
Kill everyone at the door. Then repair it.
Warriors can repair easily and safely.
Walk to door > Frenzy + Immune pain + Repair > 3s later door repaired and dodge roll back before you get isnta-killed when Immune pain ends.