There are quite a number of special edition Ghost Recon Future Soldier packs available from Ubisoft, but this one spotted by CR6 is probably one of the neatest for gadget fans.
In addition to the Signature addition extras (Guerilla map, two exclusive weapons, two exclusive weapon skins, 48 additional headgear options) you get a fully controllable missile launcher, powered by a USB connection to your laptop or PC. You can see it in action in this unboxing video.
