Rebalance all the shopfood armor and weapons (a.k.a. 95% of AO's loot). As volunteer work is the kind most likely to be finished on schedule, use players. Hell even I would do it.
Step 1: Take all pistols that are rollable RK loot, SL mobs loot, Turn spirit weapons, dyna specials, all the crap no one uses or has ever used. Make a list.
Step 2: Find some guy that knows about pistols, what kind of stats are good for damage and what are good for buffing. Like a crat, adventurer, engineer, you get the picture.
Step 3: Let this guy make changes to the mods, damage range, specials cycles and such.
Step 4: Have him submit this to FC, where it will take random FC developer #6 30 minutes to decide if the suggestions are OP or not.
Step 5: Implement immediately, no one will know which changes you accepted or were even proposed, overnight hundreds of new viable equipment options become available, unleashing an orgy of exploration and experimentation (like the 70's for Means).
Step 6: (profit ofc)
Step 7: Maybe make some adjustments according to general input.
Step 8: Repeat for other weapon types, armors, HUDs