ohh... TVT is orcs and humas for Tribes RPG... but without buildings other than the start houses. basically you spend a lot of time farming, smithing, and mining to get stuff worth having. The skill system is backwards in the speed at which you gain levels of skill. ie; faster to slower in something like farming skill or bashing skill, etc..
I never played Yoshi's mod because it had a password as long as I knew it, and nobody responded when I mailed the address for the password to help test it out. Oh well! :-p