Installation:
1) Unzip into your UT III Installation folder
2) Add the following string to <USERNAME>\Documents\My Games\Unreal Tournament 3\UTGame\Config\UTCustomChar.ini:

Parts=(Part=PART_Head,ObjectName="OldSnake.snake_head",PartID="sn",FamilyID="IRNM")
Parts=(Part=PART_Torso,ObjectName="OldSnake.snake_body",PartID="sn",FamilyID="IRNM")
Parts=(Part=PART_Arms,ObjectName="OldSnake.snake_arms",PartID="sn",FamilyID="IRNM")
Parts=(Part=PART_Thighs,ObjectName="OldSnake.snake_tighs",PartID="sn",FamilyID="IRNM")
Parts=(Part=PART_Boots,ObjectName="OldSnake.snake_boots",PartID="sn",FamilyID="IRNM")
Parts=(Part=PART_Facemask,ObjectName="OldSnake.snake_cigarette",PartID="snc",FamilyID="IRNM")

Characters=(CharName="OLD Snake",Description="<Strings:UTGameUI.CharLocData.OSC_Description>",CharID="sn",bLocked="false",Faction="Ironguard",PreviewImageMarkup="<Images:UI_Portrait.Character.UI_Portrait_Character_Ironguard_Male_Head02>",CharData=(FamilyID="IRNM",HeadID="sn",TorsoID="sn",ShoPadID="sn",bHasLeftShoPad=false,bHasRightShoPad=false,ArmsID="sn",ThighsID="sn",BootsID="sn"))


GL&HF!