I installed 2.53 and I was disappointed that the problem with uniformed bandits remained. So I made a little mini mod that adds random crap to bandits and gives them much more varied look. I only did this for myself, but I decided to share.
EDIT: ALSO WORKS FOR 2.54I ONLY DID EXPANDED/EXPANDED TROOPS!
*Desert Bandits, Forest Bandits, Steppe Bandits, Taiga Bandits, Mountain Bandits, Looters and Sea Riders have much more equipment added to their pools with gives them more random look.
*I changed some guarantees so new game is required for this to take an effect.
In the end bandits are a bit easier to deal with, but I think that they are more immersive now.
Backup your troop.txt file and overwrite it with mine.
Restart is required for changes to take full effect.
Feedback is very much welcome. Also, I did my best to keep the equipment in low tiers and in theme with its users, but if something sneaked in let me know.