The fragcastle.zip file you have requested: Maps Levels Missions / Misc / Fragcastle - 245.99kb is not available. Perhaps try browsing all files for the game Kingpin: Life of Crime and upload any files you want to share or are missing. This is the only information we could locate:
Extract the files to your Kingpin folder. Owerwrite everything. About the map. This is a small dm map, should work nice with 2-8 players. It does not have the weapons grenadelauncher and flamethrower in it. So on this one it will be hard for defensiv Small dm map which should work nice with 2-8 players.