From The TimeSplitters Wiki

Perhaps one of the most (if not the most) famous maps from the series, Chinese features a good balance of indoor areas and outdoor action. It is set at a Chinese restaurant and includes the gardens round about it. The main action points of the map are in the kitchen and around the garden. Chinese also features an Easter Egg: in the reception room there is a gong which can be punched or fired upon to make it sound.

Chinese's role in TS1's Story features Harry Tipper's and Lt. Christine Malone's debut. Set in 1970, Tipper is a Detective set to retrieve an important suitcase (presumably containing evidence). The restaurant itself is called Orientals, and is the headquarters of Mr. Big's chinese gang. It is unknown whether the whole staff of Orientals are in the gang, or whether they have some kind of allegiance towards them, since they fire at Harry Tipper.