Once you enter the museum grounds, you'll be in a large courtyard that will quickly become an arena. This area introduces you to larger enemy waves. Expect more Headless Rocketeers, Gnaar, and the first appearance of the Kleer Skeletons. The Kleer are fast and dangerous in close quarters, so keep your distance and use the Assault Rifle or Pistol to take them down. Utilize the pillars and statues in the courtyard for cover, but don't stay in one place for too long. Circle-strafing is essential here. After clearing the initial wave, more enemies will spawn from various entry points. A few Aludran Reptiloids might appear; these are tough and require sustained fire. Aim for their heads for critical damage. Once the courtyard is clear, look for an open door or a broken wall leading further into the museum. There will likely be a health pack and some armor in the corners of the courtyard after the fight, so pick them up before proceeding.
