if you don't know of this file, you find it in the Game Folder in the CA directory
most of you i bet just bypass it up thinking it has something to do with modding since models are LTB and LTA/LTC
OBJECT LTO—You must include all the server logic code in this file, such as artificial intelligence routines for enemies and scorekeeping for multiplayer games. This file should also define all the objects in your game. The DEdit tool can read them from this file directly. This allows a programmer to make a change to what properties a level designer can set on an object and have the changes immediately reflected in the level-editing package.
so yeah it does deal with modding but not as much as you think
if you look through it in Olly or IDA, you find this
there is so much in here you don't know about, figure out what it has to do with, and you might be able to have some fun
Text strings referenced in Object:.text, item 8093
Text string=ASCII "CCharacterHitBox::CreateNodeRadiusModels if(GetNodeTransform(szNodeName, transform) == LTFALSE) continue"
Text strings referenced in Object:.text, item 3372
Text string=ASCII "FreeVoteKickLevel"
Text strings referenced in Object:.text, item 5884
Text string=ASCII "%s\PlayerKickLog_%04d%02d%02d.log"
Text strings referenced in Object:.text, item 5889
Text string=ASCII "MutationBox TouchPickup 1; ActivatePickup 0; DMTouchPickup 1;Rotate 1;"