Closest I can come is a comparison to a medevac deployment for 9-12 months. The company deploys with 4-5 FSMTs to an area, where each FSMT is located approximately 50-100 nm away from each other. The HHC FSMT is slightly heavy, with a few extra back shop mechanics, a 1SG, etc...They will do the more complex mantenance..ie greater than a 40 hr PMS inspection on an H-60. The other FSMTs (DETs) look like this:
OIC: CPT
Platoon Ldr: 1/2LT
Ops/Stanz: CW2-CW4
Maint: CW2-CW4
TACOPS/AMSO: CW2-CW4
Medevac Pilots: +3 (Total of 6 or 7)
Medics: 3-4
Crew Chief/Mechanics: 3-4
Ops NCO: 1 or 2 E4-E5
Optional Supply NCO: E4-E5
There are always variations and the FSMTs are more often short vs having extra people. The FSMT FOB size can range from anything as big as Taji, all the way down to an old abandoned cement factory with minimal personnel for security. I have been deployed to FOBs on medevac with a footprint of less than 100 people TOTAL, including refuelers, infantry guarding the fences, etc... These are scary.
So, in some ways the Army is significantly more autonomous. In other ways they are less (ie a company head quarters 50-100 nm away). Sometimes medevac deploys with an entire GSAB and brigade. This is the equivalent of a CVN based deployment. There is no shortage of 'leadership' to interfere (cough cough) or help out in this case. There are some sharp young O-3s out there that prove their worth, and there are those that fail spectacularly. The great thing is that they sometimes have VERY experienced warrants to advise them. Those that fail are almost always the same ones who ignore advice from warrants and senior NCOs.