Offense: -Once you set foot on an enemy FOB, it'll alert the player or any supporters. Best thing to do is to make sure the player you're invading is offline to reduce the chance of a defender coming in. -Once you you're in the chopper, take the opportunity to mark enemies and UAVs with your binoculars. -Don't bother going non-lethal. -Bring a semi-auto sniper (suppressed) to take out UAVs easily. Both primaries should be suppressed rifles. -Bring noctocyanin, use it. -Bring decoys. This is for when the defender shows up. Lay a bunch of decoys around to confuse the defender and the sonar he'll be using. -Sneaking suit or battle dress, your choice. -Rolling works wonders. -Take out guards quickly via rifle. If you can't headshot, shoot the arm or leg and that'll neutralize them and they'll bleed out eventually. -Shoot out anti-theft devices beside containers. They're little circular devices with a bluish green light. -If all goes to hell, retreating through your wormhole is a legitimate exit strategy. -A revenge wormhole will only open if you're discovered by guards or attacked by a defender. A defender showing up will not in of itself will open a revenge wormhole. Defense: -Max preparedness level -The higher level your security team, the better they'll be at defending. They'll check out disturbances far more quickly than lower levels. -Lethal equipment for your security team -Don't bother with a long range loadout for the security team for most of of the platforms. -Sonar is your friend when defending. -Attacking an intruder, no matter the distance, will trigger an alert and sick your security team on them. -Personally, I carry a stun shotgun (which are annoying as -blam!- on the opposite end) for close quarters in order to extract the intruder, which gets you nice ransom bonus. -Battle dress all the way