Pilotable Strider Mod is a HL2:Deathmatch modification that allows you to play a deathmatch with a pilotable strider, a helicopter, or an APC. You can control the Strider like the HL2 Vehicles, but also you can use the machine gun, Anti-matter cannon and leg attack.
I think it is a good mod, but the last time I played it, I couldn't see the HUD, I couldn't see any weapon or ammunition models or textures, and my hard drive got wiped a year ago after I switched from Windows XP to Windows 7, and I couldn't find the mod. It is too bad a recent update wito Half-Life 2 Deathmeatch will keep me from playing the mod, and I heard rumors that the mod won't be updated anymore. Maybe the mod could be turned over to another team of source modders.