Repro hideObjectGlobal:
-place a unit with "this hideObjectGlobal true" in the Init OR a hide-module and run the mission on a dedicated server: no effect. (it works via debug console though)
Repro enableSimulationGlobal:
-place an empty car with "this enableSimulation false" and another one with "this enableSimulationGlobal false" in their Init fields
-add "setdamage 1" and an altitude of 10
-run the mission on a dedicated server:
-> both cars will hover in the air, so the simulation in general is disabled, _but_ the car with the global-command will explode and burn (just like the command was entered a moment later) while the other one with "enableSimulation false" wont.
You can alternatively place a hidden flying helicopter with "enableSimulationGlobal false" in the Init, and the players will always hear the sound of the rotor.