Hey, so I was in a BG and we killed the priest with the flag, but he continued to hold it in spirit of redemption meaning he held it for 15 seconds after being dead, ended up winning them the game.
step 1: get flag as holy priest
step 2: die, you'll now be able to hold it for 15 secs
Might need testing to get it work consistently.
Seems like a possible op glitch for rbgs