There are a few problems I see there. 1) The Colt M1911 - way to contemporary Earth, not to mention real, go out to an event carrying that and you're asking for trouble orange tip or not. Whilst many Star Wars weapons used real world guns as their basis, they were modified to look different. People don't see Sterling SMG's carried by Stormtroopers, they see E-11's (well, they don't know they're called an E-11, but they see blaster rifles).
2) Camo - again way to contemporary. People aren't going to see a Star Wars character with camouflage, they'll see weird modern soldier wannabe, especially as that camo is very modern. The Star Wars films did have camouflaged troops - The BARC troopers, Rebel Commandos and Han's Endor trench coat for example, but none of that was modern Earth camouflage seen every time you put the TV on.