Resistance 3

Replay Chapter: New York, NY: Washington Square
Once you get to Washington Square you will need to battle your way into a small Chimeran base structure. Once you have cleaned out the base and successfully infiltrated, the Chimera will launch a counter-attack to try and reclaim it. You cannot let a single Chimera re-enter the base. If a drone flies over the top of the walls and gets inside, it will not negate the trophy, it only applies to the ground forces. First, one wave of enemies will attack the northern side. Dispatch them without letting them break down the wall, then another force will attack the west side. Take them down also, and as long as no Chimera stepped foot in to your base, you will unlock this trophy. Here are a few tips that may make it easier.

• As soon as the Chimera arrive, hit them hard with your long distance weapons, the Deadeye and Marksman. A single headshot with the Deadeye will take down a Hybrid or Steelhead, so only use the secondary fire when the Ravagers show up. Try to take as many of them out from a distance as you can.
• If enemies get close to your base, shoot down a Marksman turret or two. These will shred through opposition with ease and keep your gate safe. However they have a fairly small lifespan, so don't rely on them to heavily. Alternatively, you can send out a secondary fire shot from the Atomizer, which will create a black hole effect sucking in any nearby enemies. Both of these will effectively take out any Chimera getting too close to your base.
• Should your gate get breached, don't worry! As long as no Chimera have entered, you can jump down to the breach, step on through and create a makeshift last line of defense. Using weapons like the shotgun to know the enemies down, or the cryogun to freeze them in place, you can safely continue to protect your base from the outside.
• Although drones do not count as enemies getting in to the base, don't ignore them. They will deal constant damage and interruption to you while you are trying to stall the forces on the outside. It is best to kill the drones quickly before they can become a hassle.
• ALWAYS place priority on the Ravagers. These guys no nothing other than "charge" and will tear down your defenses in seconds if you ignore them. Use the secondary fire of the Deadeye to make short work of them.
• Attempt this on Casual difficulty, so that it isn't harder than it needs to be.