That's just crazy! They really are in a time loop. Let's see if I can understand it... Brock and Gary discovered the temple, unknowingly time traveled to the day of the eclipse, and got killed by zombies, but their deaths were canceled out by Dempsey, Nikolai, Takeo, and Richtofen. When Brock and Gary touched the 115 meteor, they were sent back to when they discovered the temple with no memory of the future, dooming them to make the same moves forever (or until someone gets déja vu). Wow.