I don't know what people are complaining about. The game never had character customization, doesn't need it. This is just a Remaster of the original RF: Guerilla with improved graphics, the bugs that were in the initial version are still there and that was enough to knock a star off what would have otherwise made it a 5-star recommendation. You can still used player-made mods for it and that's good. Just don't expect any wild gameplay changes.
Anyone who thinks this is a good Carmageddon game either played Twisted Metal on the Playstation, or never played the first two Carmageddon games. Either way they don't understand what Carmageddon is and should probably play the first two games to understand why this one is a pile of crap.
It's an interesting game right up until the Mission "Eldruid" where you have to continuously build Energy Cores until a Spiral charges up, meanwhile you're being continuously attacked by The Scourge, forcing you to use your perimeter shield constantly which drains energy until you can't anymore. And then pretty much you're at the mercy of the scourge as they destroy your Energy cores. And that's where the game stopped being fun for me. This mission single-handedly killed any enjoyment from playing this game. And I've read other reviews and forum posts indicating it just gets even more frustrating from there. I wish I could refund it.