All the following have connections to the Warlord, who will be part of our next entry.
After a decade of mercenary operations, in the mid-late 2000s the Arsenal is weakened after members begin to age out, suffer crippling injuries or die. When new recruits fail to meet the high standards of the team and they suffer several setbacks endangering their financial security, the Arsenal's "Gun Council" vote to take the Warlord's offer of buying out the team. The remaining members retire, passing the torch to the Warlord who recruits an all-new Arsenal from his Shadow Army. The team becomes the second team after the War Machine to be attached to the Warlord's growing forces, serving as a combination of special forces and specialist cadre.
The originals Arsenal members used their new found wealth to start new lives, most simply enjoy the good life of retirement under new identities but several, including Arsenal himself would be recruited by ARGENT as consultants and trainers in the 2010s as the group founds it's own agent corps.
A small mercenary team, one that all wear similar advanced combat suits and have all undergone the same simple superhuman augmentation - the Berserks quickly get a reputation for good, if rather rambunctious service so long as the money and action is kept flowing. Working back and forth for VIPER and RAVEN (with the caveat that the Berserks would not work directly against their previous employer) during their war in the 1980s saw them employed in proxy battles with criminal allies of the two organizations. After VIPER wins the war, a member of the Berserks named Fenris, bucking for the leadership of team gets into a fight with the rest of the and is chased off barely escaping with his life. The team replaces him with a new female member named Sif. Thanks to the mild life extension properties resulting from their superhuman augmentation the team continues working on and off for VIPER as well as ARGENT and later Raven Reborn. When the Warlord tries to encourage them to join his organization in the late 2000s, they refused.
H.A.W.C.S. (Heavy Assault Weapons and Combat Specialists)
The original H.A.W.C.S team were rogue US soldiers equipped with stolen high tech battlesuits. Active only from the early to mid 90s, they worked exclusively for VIPER and were among the forces leveraged against Eurostar when VIPER went to war with them in 1996. Silencer started the attack on Eurostar by sniping Whitestar in the head with her Gauss Pistol, killing him instantly. Meanwhile Downtown fired his heavy artillery missile into Durak, blasting the tough strongman into a building causing it to collapse on top of him. Killzone sprayed downfield killing the Whip and pinning down Fiacho. As Airstrike came in to blow up a vulnerable Fiacho, Bora smashed him from the sky with her control over the air. When Silencer positioned herself to take down Bora with her next shot, Ultrasonique who alone could see her blasted her with sonic blast after sonic blast until the battering knocked her unconscious. A furious Durak leapt out of the rubble and right onto Downtown, and smashed his fist straight through his head. With all his comrades downed Killzone opened up with another autocannon barrage and stood his ground. A moments later the rest of Eurostar plowed him under. Pantera tore the stunned Airstrike's throat out and Fiacho administered the coup de grace to a now visible Silencer with his flechette pistol. Two members of Eurostar dead right there and the H.A.W.C.S. team wiped out in less than a minute. As the rest of the VIPER contingent began to open fire into Eurostar's survivors, Fiacho chose to retreat and save his team and fight another day.
Having won their battle, VIPER recovered the dead H.A.W.C.S. and what was left of their battlesuits. Sending the suits back to a safe nest to see if they were repairable or not, they were quickly forgotten about as Eurostar began to wreak havoc on VIPER's European operations for their ambush. Crated and left in storage for over a decade, the H.A.W.C.S. remnants were moved around as surplus to needs until a Nest leader needing a quick shot of cash sold them to the Warlord. The Warlord, disappointed in the poor condition they were in still has his engineers tearing the suits down in order to rebuild them or incorporate the technology into his own.
Devastator, Lazer, Mechassassin and the Steel Commando
Devastator would have a very short career. Having stolen his battlesuit design from the Warlord and despite surviving several brushes with the War Machine it was only a matter of time before that he was captured by the Warlord's agents. His torture and eventual death would captured on video and sent as part of a last threat to work for him or else to Lazer, Mechassassin and the Steel Commando. Nominally rivals, the three met and discussed the Warlord and promptly disappeared. Until the Libyan Civil that is.
Meanwhile Devastators battlesuit would be given to soldier of the Shadow Army and serve as the newest member of the War Machine.
Notes: The Arsenal is closer to as presented in 4E Dark Champions than the 5E version, though the differences between aren't too great. The Berserks are also based on the 4E Dark Champions team. The H.A.W.C.S. are lifted directly from 4E High Tech Enemies. Devastator, Lazer, Mechassassin and Steel Commando are all in their 6E form.