More side activities that give XP; only doing missions gets boring
Re-work high level perks (kind of frustrating imo that basically all of the game changing perks are unlocked 195+)
Spread them through rank-ups rather than isolating to the top of the ranks
It's quite frustrating to vs people with perks you have no counter for
Enforce a code of conduct in-game (no hateful names [IHateLGBT and fuckr-tards are just two I've encountered tonight]; no calling each other "f-ggot" / gay / r-tard constantly, etc). No permas on first offense, just a [free] forced name change or increasing chat timeout
Yes, it is a rated M-game but this is just dumb. No one wants to be forced to read your political opinions or whatever drivel your brain thinks up
Haven't played Enforcer much but seems like Crims have side activities to do on an empty server but Enf don't. Maybe like "take reports" from citizens and doing bank runs for stores to have parallels to mugging & smash-and-grab?)
Let us buy the armored trucks and garbage trucks
In-game journal / guide to show where you can get a specific upgrade
Boats & motorcycles
Hand weapons (knives, tasers, etc); basically just to BM on campers you sneak up on
Bad Manners medal (negative points)
If you blow up a certain number of cars in a row before they are unlocked during a car steal mission
If you hide in one of the "nah nah nah" spots on a hold mission on a 1v1 or 2v1 in your favor [gold = 2 silver, so a single gold or two silvers could use the spots in this case]; we all know where they are so it "shouldn't be hard" to fence them then check if the item is sitting in it