freeform training: open the level up for contracts mode.
final test: place a silenced sniper rifle where you start.
paris: allow novikov to be killed by the light rig without having anyone else on stage. also, let people bring whatever suit they want when starting out in the auction room
sapienza: replace city guards with cops. keep the mourge guards in suits though.
marrakesh: if i could, i would add a kill opportunity that allows you to get claus killed by the protestors. but that is too big of a change. so instead, i would make it that if reza zaydan gets sick from drinking the wine in his office, he goes to the restroom and pukes there (if he doesn’t do that already)
bangkok: better route for ken morgan. i don’t know how. just better lol. oh and add some elevators that are out of service. it’s pretty odd how a hotel doesn’t have elevators. also, remove the keycard at thr security door, and let 47 spawn with a card for his hotel room.
colorado: let sean rose and maya parvati be armed with pistols. if you are spotted by them, they will arrest/attack you like any guard. if you cause an alert from far away, they will be taken by guards to a safe place like any other target. also, let ppl disguise as ezra berg, even without opportunities.
hokkaido: replace the doctor that checks on jason portman with a male surgeon. add another surgeon in the lounge. he would be the first person to eat the sushi, so if you added emetic poison, he will go to the restroom and you can take his clothes there. also, add a way to clear out the operating theatre cleanly so 47 can go with his suit and give soders a heart attack without losing SA. also, put a free surgeon disguise somewhere in the map. maybe where the guy is fixing the snowmobile? and perhaps add a free ninja disguise at the top of the mountain.
in general, i would add undercover locations for wacky disguises, like the stalker in bangkok, the motorcyclist in hokkaido, the scarecrow in colorado, etc. would be great for contracts mode.
i would also make a slightly more radical change. i would replace the santa claus outfit with a suit like the image below. the santa claus outfit is added as an undercover location in paris so it is still in the game, but it no longer counts as a suit. it is now a wacky disguise, just like the vampire magician or stalker. also when 47 kills his target as santa, he still says ho ho ho.