In that case then the following requirements must be met, there nto that bad, dont worry.
To be a member of the mod team you must complete at least one full project piece (the number varies depending on dificulty and quality*)and have it accepted by chromeangel and the Dev team (but mostly chrome)
you have to be willing to access IRC and sit in the channel when possable since we do 90% of our talking in there, oviously were not expecting 24-7 coverage but normally at least a few days a week when everyone else is about (thats roughly 5-10pm GMT). This part is negotiatable (and you may be doing it already, i lose track of everyone in IRC).
Finally you have to be willing to continue developing the mod, myself ive aided in animating the warrior, created a prop, deal with PR (assuming chrome is not one step ahead of me, he normally is at the moment), monitor other mods, map to the best of my abilities and Alpha test.
I shoudl make a note about alpha testing here, its not as awesome as you think, sometimes it is, but 90% of the time its trying to break the mod in some way and filing bugs in the Dev wiki. We wont accept anyone we suspect of just wanting to get on the team to alpha test.
*as an example of getting on the team its normally one from this list:
1 fully skinned player model of acceptable quality
3-5 weapon/npc models depending on quality (Darkwulf got in this way)
1 full set of animations for a player model
Again its all down to type and quality, as well as ability to work within the team (mainly can you take Chromeangels comments, this is critical as he has a level of work and quality he tries to maintain, and i still have flash backs to the animation of Tom chats with him).
You best bet is to enter IRC and talk to the team as a whole, allow us to sample your work and use any feedback we give you to improve things.
It sounds like a lot i know but its not actually that bad once you get going with it, and Emperor only knows we need a mapper.
here is chromes post on the matter,
it is important you read ithttp://www.40ksource.com/phpBB2/viewtopic.php?t=361