Well it’s going to take some time to adapt to the levels not having most items at their usual place, but I suppose it probably wouldn’t work balance-wise if they were the same as they are in main missions. Also it’s kinda hard to understand which items you get to keep at the end of the contracts from those you found during the mission (like I left Mendoza with the Bartoli sniper, Jarl’s saber, a Hackl handgun, a few bottles of poison and a scrambler, but I could only keep the handgun and the scrambler).
A couple problems I noticed:
Typo on the main menu, “it’s” should be “its”
On non-widescreen resolutions (I’m using 1280*1024) the side of the screen gets cut off when you choose weapons in the safehouse or from vendors. It’s not really troublesome in the safehouse, but when buying things from vendors, you can’t see some item prices. It’s a pretty common problem with current videogames sadly 
Oh and the mission timer in the safehouse feels kinda weird lol
Otherwise I like it so far.