Where I'm at, the VM guys (2) work on everything with a spark plug and any implements that attach to one of those things.
-Snowcats
-On Road vehicles - shuttles vans, people carriers, plow trucks, trailers
-Off Road vehicles - snowmobiles, ATVs, skid steers, golf carts
-Standalone equipment - Generators, water pumps, etc.
-Lawn/Maintenance equipment - Lawn mowers, leaf blowers, weed whackers, wood chippers, etc.
At a resort like this, these are some things you should be skilled in and be responsible for:
Diesel & Gas motors, 2 stroke, 4 stroke, Hydraulics troubleshooting & repair, experience with diagnostic tools, DOT laws & regs, DEP regs (fueling, waste oil disposal), OSHA regs, experience with general shop equipment (lifts, cranes, presses, etc). Also, having your inspection licenses if the state requires them helps if you're working with on-road vehicles.