Hmm if the teeth wont work then other than that perhaps the words ' Army ' or ' Marines 'in US white with a US emblem ( roundel with wings i think it was called ) on the side will give it an older feel military wise without going into the realms of gaming.
The planes pictured ( A10 & Typhoon? ) all have a nose to mount the teeth on, as does the cobra and just about any small nosed us helicopter ( AH 64 as well ) which as you have said, you don't
Is there an option to aquire a small sticker(s) of the cobra itself to mount somewhere? This will at least give it the association with what you have built so to speak and combined with larger ' Army/Marine' stickers and US emblem could give the effect you're looking for.
The planes pictured ( A10 & Typhoon? ) all have a nose to mount the teeth on, as does the cobra and just about any small nosed us helicopter ( AH 64 as well ) which as you have said, you don't
Is there an option to aquire a small sticker(s) of the cobra itself to mount somewhere? This will at least give it the association with what you have built so to speak and combined with larger ' Army/Marine' stickers and US emblem could give the effect you're looking for.