1/144 scale armor/vehicles

I'm pretty sure they're available--I think I got some for German vehicles at some point. But man, they're TINY lil buggers! Check eBay..

GRAHAMJ

I've searched for humvees/Striker and other USMC vehiles in this scale.

As far as I'm aware, the USMC doesn't use any Stryker variant. You would be looking for some flavour of LAV.

You should be able to find USMC M1A1's in 1/144, though the LCAC can only carry one at a time. I believe there are 1/144 AAVP7A1's but putting them on a LCAC is a little superflous, though not impossible.