tank-HE+STAFF works.
how to? fire STAFF once, switch to HE(if HUD displays 1,just fire. sometimes it is possible), and if HUD says reloading, quickly switch to STAFF once more.
then wait for STAFF to ready for fire, and fire again+switch to HE. then one more HE shot is instantly shootable.
how to deploy spawn beacon in top of the shanghai building? it is simple.
when it can't be deployed in floor, try to deploy it in edge of buildings, it will work.
this one is all-known, but some guys dont know so i posted this one.
zeroing is more effective than just shooting at long distance.
when enemy is inside the container(can open), just go near the door.
sometimes C4 can damage when it is attached to the door(i'm not sure of this so i'll test some and post later)
in operation locker, near B(in TDM), you can go over those rocks and go straight, and enemy's spawn point is visible in there.
also work in left end of the map(outside), and you can spawnkill them nicely.
how to nver-detected wall hack? just set all video settings to low.
then enemys at 200m~ will be shown more clear(because soldiers are rendered faster than objects-priority)