Tips to Beat Mansion Siege on Pro
Focus on killing the Pig that shows up when they invade the upper floor. Once he dies the event resolves. He will spawn and run to the window where you initially start the defense with Luis. If you’re a deadeye, you can snipe him from the upper floor as soon as you hear him arrive.
Upgrade your handgun’s Power (+2 bars) bring 2 flash bangs for the Pig mid boss, flash em then stab, regarding ammo Luis will give you some.