The Sir. Community has made its first foray into the Crysis modding world with Sir. Crackerjam's Ion Cannon. Based on the GDI superweapon in Command & Conquer 3: Tiberium Wars, the Ion Cannon is a particle beam fired via binoculars that does a ridiculous amount of damage to anything in a large radius.
Be on the lookout for more Crysis add-ons from Sir. Crackerjam in the near future!
Download the Ion Cannon: Compressed(.rar) [625Kb]
Additional Links: Crymod.com Thread Download the Trailer