From The TimeSplitters Wiki

I like Dead People is part of the arcade Mode Madness series in TimeSplitters Future Perfect. You play as Edwina, and are against zombies in a shrink match at the Hotel.

Stragedy

This is easy, just get to the "main" room. It's a bit hard to discribe, except for it has two balconys across from each other and stair that lead right up to one. Use any guns basically, but the double machine guns are really good and the Soviet Rifle is the best. Just stay in the main room and run around shooting the zombies (there will be around three at a time), and you should get a silver easily. Gold isn't too hard either, you just have to die less while in the main room.