The Defiance website now offers Castithan Charge Pack, the promised first add-on for Defiance, Trion's TV tie-in MMORPG. Word is this offers "exclusive access to new story missions, gameplay rewards, vehicles, customization enhancements and more." Here's what the pack offers:

• Play as the alien Castithan Species ­ create a new character or change your existing one
• New Battle Arena Game Mode ­ an instanced single player ³horde mode²-style game that opens up a new story mission line, Castithan Charge Blade weapon and in-game item
• Unique version of the Raptor ­ a new four passenger truck designed to help small groups of arkhunters to quickly traverse the terraformed Bay Area
• Unique Castithan outfit
• New Xbox 360® and PlayStation®3 system Achievements and Trophies