My guess is the comic will be a reprint of this:
Taken from Wikipedia:
Cobra-La in G.I. Joe vs. the Transformers
Cobra-La made their first comics appearance in the G.I Joe vs. the Transformers series from [COLOR=#0000ff]Devil's Due Publishing[/COLOR], holders of the G.I Joe license. First appearing in the second crossover springing Cobra scientist [COLOR=#0000ff]Doctor Mindbender[/COLOR] from jail, they would reappear in the fourth crossover 'Black Horizon', with a much-expanded backstory.
Although the series does not directly reveal their origins, it does reveal the reason for their secrecy. Believed to be the children of an old god by early humans, the creatures found themselves confronted by another creature believed to be a god; [COLOR=#0000ff]Unicron[/COLOR], the Chaos-Bringer, had come to Earth to devour it to feed his own hunger. Cobra-La opposed him, threatening to attack him with a metal-devouring organic spore. Before the two sides could annihilate each other, an agreement was reached favouring both parties. The creatures would go into hiding, allowing humanity to develop. Then, when they had reached a sufficient technological level to serve as slaves for the Chaos-Bringer's inner workings, the creatures would call Unicron. He would destroy the remainder of humanity and Cobra-La would inherit the human-free world he left behind. Thousands of years later the pact would be kept and the creatures, now calling themselves Cobra-La, would summon Unicron via a beacon, using [COLOR=#0000ff]Bludgeon[/COLOR] and his team of Decepticon mercenaries to kill all interlopers, including Autobots from Cybertron. They also have an unusual captive - [COLOR=#0000ff]Joe Colton[/COLOR], the original G.I Joe. Here they are also led by [COLOR=#0000ff]Golobulus[/COLOR]. They attempted to sacrifice [COLOR=#0000ff]Firewall[/COLOR] to Unicron, but were stopped by an escaped Colton, [COLOR=#0000ff]Hawk[/COLOR] and [COLOR=#0000ff]Optimus Prime[/COLOR]. Colton battled Nemesis Enforcer while Hawk freed Firewall. Golobulus attempted to stop him, but was crushed by Prime. Pythona had a change of heart and killed the Enforcer. With Unicron defeated by [COLOR=#0000ff]Cosmos[/COLOR] and [COLOR=#0000ff]Flint[/COLOR], Cobra-La were detained by the rest of G.I Joe.