I think the hud is okay,
and I think there shouldn't be an option for costom huds (maybe make it possible though to move parts of the hud, or even hide parts so you can chose what you need and where you like to have stuff like radar and hp bar)
But it's unnecessary to add (advantage) stuff to your hud like building bars etc, learn to play the game without knowing everything by just watching your hud. (probably people are going to complain about my opinion there but this is just what I think)
Maybe people don't like renegade X because they don't have the advantage they had in renegade, renegade X is harder then.
Ofcourse, skins and mods are cool, but some (if not most) are using skins and mods to see things easier and know more than they should unlike other players.
Anyway,
I like Renegade X, and I'm looking forward to the next updates.
For now it's not that addictive as Renegade is, I have no idea why, probably because of the amount of players atm, but that'll change after every update (I believe since 0.50 came out, more and more people are playing RenX which is a good thing).
Maybe not to many people play RenX because it is 'different' than what they are used to, the moving/driving/aiming etc, some just can't accept changes (for now) and stay on Renegade.
Keep up the good work