Xmayhem is a brand new gametype first introduced in Update 8 and reintroduced in Update 16. It's a mode used for celebrating Xmas.

Xmayhem is a free for all gametype. Each soldier has increased health, and can be hard to kill. The objective is to get the most points in a round, and to eliminate T-IM 101. The game takes place in the Mainline Winter map, and the event is available during December.

T-IM 101 is a powerful marine that can kill other marines easily. He can be found in a distinctive yellow tint, and a Santa hat. He is also known to yell in a way a certain actor does. You can become the T-IM 101 by finding the gift in the map.

The gift is an item in the map that turns you into the T-IM 101. It is placed randomly around the map usually on top of an object. If you hear audio of a jingle, you are near. (Note that the closer you are, the stronger the audio gets.) If you find it, it is a bright yellow present.

Tips for soldiers:
1. Don't fire on other people and focus on the T-IM.

This is a big tip. Usually, I see other people firing on each other instead of teaming up. If you want to win, you will want to take the T-IM out.

2. Aim for the head!

This is another tip that most players do not do. Chest and body shots are very ineffective in this mode, and headshots are still as lethal as ever.

3. Team up!

This is part of 1 but still important. The way you'll be able to win is to focus on T-IM first, rather than firing on other marines.

4. Check T-IM's Health!

Make sure to see T-IM's condition before you attack. If T-IM has a yellow neon glow he has a large amound of health, if the glow doesn't show up on him, he is weak so be sure to kill him as quickly as possible.

5. Never charge head on! [/u]

You always want to flank the T-IM if you have visual on him. You'll have a bigger chance at survival if you shoot him from the back or the side. Never engage him when he has eyes on you.

Tips for T-IM 101

1. Keep your distance.

When attacking other soldiers, you will want to stay away from them. At close, they'll have a better chance of killing you, worse in numbers.

2. If taking fire, run away.

T-IM isn't invincible, he can take more damage but he is still a marine. If you can't kill the marines and are taking fire, the best option is to flee rather than fight.

Used with permission from ZPS. Youtube footage used from the Interstellar Marines youtube page.

If there is anything that I will need to fix, I can edit this page. If there is any images and videos on this subject, I will post it up in the guide.