Yeah it wouldn't make much sense for a Shield agent (I'm assuming that's what he is) to be dressed in an urban camo/stars & stripes ensemble. Cap's uniform has a historical reason for looking the way it does and it looks like early on in the film he's distanced himself from that somewhat.
If it were me designing a version of the suit in such a way that it evoked the comic costume without looking so...um...shall we say naff? I'd go with an Arctic camo pattern for the fatigues with red glowy thing on the wingsuit and maybe red tinted goggles. Because everyone knows that glowy things = advanced futuristic tech!