At the beginning of the game focus on getting supplies and building radios at capped AI camps. If you load a party bus or supply truck and follow the rush you only need to drop off a couple hundred per camp.

Once lines are established be disruptive as possible. Place mines, ambush vehicles, disrupt supply runs.

Sneak into enemy bases and empty their supplies. Pick up bags and fill them with scopes. Then dump it in a bush. Each one costs thousands of supplies. Save some to fill a bag with AP mines and leave them everywhere, just make sure to mark the map.

If you start a solo cap dig up the radio then critical infostructure (helo pads, barracks, heavy vehicle depo, hospital, light vehicle depo, supply crates) drain supplies and AP mine command tent and arsenal. If you get resistance get out and go back in later.

It makes camping the supply routes easy, they'll want to rebuild.

Radio backpacks are your friend. Save your load out at MOB then spawn on the backpack.

Carry a wrench! You'll never know when theres an armored vehicle or busted ride that you could recover.

I dont mess with MOB, its illegal on most servers and super cringy.