If you’re gonna try and ram a military barricade you’re gonna need one serious vehicle, the turrets tend to spawn behind the barricades.
Others have suggested things like Anti-Tank weapons but keep in mind, anything that explodes will likely blow up your precious .50 cal rounds. Smoke is only good until it wears off, and if you can’t see the turret or need to see it to kill it, it’ll kill you the second it gets a clear line of sight. Night’s good, but it’s worth mentioning EMP grenades.
Alternatively, do what I do:
Avoid checkpoints like the plague.