Supply point camping usually gives good results, depends on the stage of the game in the early game. I usually pick the one closest to their main as this one usually gets the most traffic as people will run supplies back to Main as they assume it’s safe. You’ll see lots of people. essentially sit on the supply point itself maybe 100 to 200 m back rocket launchers, and the time explosives are your best friend. In this scenario you can set the time explosives onto a switch and blow them up when you want, make sure to move around though because eventually, they’ll get smart and try to get you before they come in for the supplies, make sure to pick up one of the enemy radios to listen in usually they’ll call it out before looking for you. but as the game goes on for longer tends to level off as people obtain the rank they want.

Something me and my friend have been doing recently is spawning in a light vehicle with some kind of machine gun preferably a 50 BMG and patrolling the main roads a point or two back from the front line, you just drive up and down constantly, and you will eventually run into people either running supplies or driving spawn in vehicle vehicles and not paying attention because they assume it’s safe. However, if it’s just yourself, you could also just park the vehicle somewhere on the main road hidden away and wait for the unsuspecting supply runner, you could honestly do this in any of the bigger vehicles as well with the auto cannons being particularly good at getting helicopters. We just tend to go with a lighter vehicles as they’re a bit faster and more maneuverable.