A trick we used when we were going high was to wear our M-17's /MCU2P's on our morning 6 mile dirt shuffles. Not sure if it helped but we never had a problem that I can remember when we aclimated in such a manner about 60 days prior to deployment. But then we were stationed at 6500 feet MSL also thus it was no great leap per se.......
Stay Safe !
It also takes screening as well as getting acclimated, I think a pretty fair % of troops just get sick and can't hack it no matter what, they need to be found out before sending them into high altitude combat, or you will just have that many more built in casualties.
(For the record, if I can't smell salt water, I don't want to go.)