From The TimeSplitters Wiki

Night Shift
Game	TS2
League	Amateur League
Section	It's a Blast
Mode	Leech
Map	Robot Factory
Character	R-109
Enemies Encountered	SentryBot x2 ChassisBot x2
Rewards	Silver: Leech Gold: SentryBot
Medal Requirements	Bronze: 1st Silver: 1st and 15 kills Gold: 1st and 25 kills Platinum: 1st and 45 kills

Night Shift is a straight-up deathmatch that introduces Leech.

Briefing

It is a night shift at the factory and the Machinist is having a nap. Time to play! Inject some enthusiasm into the other workers before he wakes up. Your health is replenished by damage inflicted so keep up a good hit rate to stay alive!

Strategy

Grab a Rocket Launcher and start blowing stuff up, that's all there is to this level, that and speed. You need to make quick kills in this match to get a Gold, using the secondary fire on the Rocket Launcher is a good strategy. Everyone starts with a Rocket Launcher so don't be afraid to use up a lot of rockets.