Scream 2 was set within a College Campus, which seemed a natural progression from Scream being focused on High School students. Scream 3 focused on the set of Stab 3 which was a good idea in theory seeing as it was depicting what happened in Scream and Scream 2 but it's just a pity it wasn't that well written and the story was piss poor.
Its annoying when u get a good horror movie and the ending is left open for a sequel,when it comes around its half the budget,none of the original cast and disregarRAB previous scenes or events as if they never happened.