i wrote down a couple ideas at work today
all members alive during daily reset for one entire week (weekly reset to reset)
prize could be a one time HP boost or the gangs lvl is increased by x
gang total combined stats/game score <500k, <1mil.. etc
gang achieves 10k-15k-20k.. etc kills in a week/day, w/e
prize could be a stat boost for members
guardian stats equal or surpass x amount
prize could be the option to have a 6th guardian or have one guardian count twice at random.
of course the achievements the gang has completed should be visible to anyone viewing the gang page.