In order to stand a chance against the Headman, both G.I. Joe and Cobra formed a mutual alliance, with a pair of randomly-selected members from each side assigned to work together. Shockwave ended up pairing with Crimson Guard No. 1.
During the assault on the Headman's intercity distribution house, Shockwave and Crimson Guard No. 1 attempted to launch a sneak attack by entering the building's rooftop, but were immediately taken prisoners by a group of Headhunter troopers. Much to Shockwave's surprise, his Cobra ally struck up a bargain, suggesting he brought Shockwave to them on purpose.
Once inside the building, Crimson Guard No.1 launched a successful attack on the Headhunters, the bargain revealed to be a ruse. Shockwave believed he was going to be betrayed, and gave him credit for being sneaky. The Crimson Guard declared that normally he would, however the welfare of his sister (and the Headman's money) was more important.
Appearance: light blue cap with dark blue urban camo; dark blue face mask and vest; light blue shirt and pants with dark blue urban camo; dark blue gloves, belt, holster
Accessories: square, dark blue pouch backpack with clips on side for knife; blue pistol with small pin forward of textured grip; blue submachine gun with thin, curved stock and holes in muzzle; thick, silver knife with partially serrated blade.
Appearance: black hair; blue shirt with black vest and gloves; blue pants with black belt, holster, kneepads
Accessories: black SWAT helmet with cut-out visor; black XM-15 assault rifle (jagged stock, short grip, long magazine, handle on top); transparent yellow, treaded, spring-loaded battering ram launcher; black battering ram with square tip.
"Shockwave" is one of the names Hasbro uses for bothG.I. Joe and Transformers properties. In the early 2000s trademark issues forced both characters to be renamed "Shockblast". The name "Shockwave" was recovered by Hasbro by 2006; however they have opted to use it only for the Transformers line and so the 2008 and 2009 releases of the G.I. Joe characters have been called "Shockblast". Using the different names allows Hasbro to retain both trademarks.