Project Beta aims to be a community-run alternative to the official TF2 Beta. We decided to start it because we felt that the official beta wasn’t being used as best as it could.
We try out balance changes, new weapons and anything else that deserves to be tested, and most changes come directly from suggestions and feedback from you. If you have some thoughts on how Team Fortress 2 should be, or some cool new weapon ideas, we’d love to hear about it.
To try out a new weapon, just start playing the game on one of our Project Beta servers. To equip a weapon, just attempt to use one of the weapons listed on the wiki and the new weapon/changes will automatically be applied for you.
You can check out what all the current weapons are on the TF2TightRope wiki page.