While not the oldest machinima production groups, they're one of the most popular. They've created one of the most popular machinima series Red vs. Blue(made in Halo:Combat Evolved and Halo 2) As well as The Strangerhood (made in The Sims 2) and a 5 episode mini-series called P.A.N.I.C.S. which is an acronym for People Acting Normal In Crazy-ass Situations.(made with F.E.A.R.) The first 4 episodes can be downloaded from their website panics.roosterteeth.comand the 5th is included with the collectors edition of The video game F.E.A.R.