From The TimeSplitters Wiki

The Deerhaunter
Unlocked by	Unlocked by Default
Species	Mutant
Size	Large
Accuracy	N/A
Agility	5
Stamina	5
Fire Proof	2
Shock Proof	5
Default AI	5
Native TimeZone	1994
First Appearance	TS3 Story Mode
Relations	None
Games	TS3

The Deerhaunter appears in TimeSplitters: Future Perfect as a playable character. The character resembles a large deer or moose standing on its hind legs. The Deerhaunter has been stripped of its skin. Its large antlers, hooked arms and hooves make it a formidable opponent. The Deerhaunter appears in the Story mode level Mansion Of Madness as the first boss.

TS1 Gesture	None	TSFP Gesture	"The moose is loose!"
TS2 Gallery	None	TSFP Gallery	Go on, just try tying this guy onto the roof-rack of your sports utility vehicle.

Glitch

There is a Mansion of Madness Boss Glitch that will make The Deerhaunter an easier fight.