"An Evening with Infinity Ward" is a level unlocked upon completing the Call of Duty: Modern Warfare 2's Campaign mode. It contains all weapons and some of the vehicles featured in the game, but the vehicles are not drivable, and most are not to scale.
This level takes place in a museum in Encino, California, and features exhibits representing every level in the Campaign. There are also supply crates to refill the player's ammo. In addition, the weapons found can be taken and used. When the player is near an exhibit, the characters act out a small scenario for a few seconds, before freezing again. The museum is split into three halls, two containing exhibits of characters and enemies from the game's levels, and the third contains models of the game's vehicles. In the exhibits containing the characters and enemies, there are information desks. On each desk is a red button, that when near says "Do NOT Press". If the player presses and holds "X" or "Square" near the button, there will be a helicopter sound effect and the NPCs will instantly come to life and attack, whether they're friendly characters or not. All the NPCs are killable, whether or not the button is pressed, and respawn when the player leaves the exhibit (unless the button is pressed then they won't respawn). Note that when you press the button, the NPCs will hunt you and wait for you, even leaving that specific room, until they die. Once they are all dead, there will be an airstrike sound effect, and all characters will respawn. In this level there are some weapons that are found on the shelves that cannot be used anywhere else in the game.