Fraghouse Invasion is a large collection of new maps, weapons, monsters, skins, models and a variety of other content that has been built from one code twist of the original Invasion. It takes the normal Invasion gametype and gives it a few subtle tweaks that make huge gameplay changes. Monsters are spawned at specific locations rather than player starts, meaning the players can start in a fort structure as a defense from the oncoming hordes of monsters! Version 5 adds a metric tonload of new features and improves the mod beyond recognition.