Although the previous history of Martinez Security is unknown, the company was a major private military company by the 2000s, being one of the most recognized entities on its field. Martinez's troops were divided into several branches, including a ground forces branch and air force division, itself large enough to necessitate the use of AWACS operators. The workforce of the company was composed by agents and employees from various countries, including the United States, Japan, Sweden and United Kingdom. A number of members were also former professional soldiers.
Years after the economic meltdown of the late 2000s, Martinez was approached by the United States Armed Forces to conduct a joint military show with the USN Seventh Fleet and the Japan Self-Defense Forces at Midway Island before the first engagement with the Valahia, when unknown forces were detected on radar. After the Balaur's first attack by the Spiridus at Tokyo Bay, Antares One and Rigel Squadron joined up with the JSDF to defend Japan from the Valahia. After the Orgoi's destruction, Rigel Squadron defected to the Valahia, while Martinez Security itself joined with other PMCs to form the IUPF, which was created by Andre Olivieri.
After the formation of the IUPF, Martinez Security proceeded to fight the Valahia in Egypt, destroying two silos, and the Middle East when Antares One rescued an IIAO officer, before making several devastating blows to the Valahia in London by destroying the Spiridus, which they had been chasing since Tokyo, the stand-alone Balaur, and preventing them from getting fuel for their nuclear missiles that they planned to launch them at the US and Europe, pushing the Valahia back to their HQ. Finally, Martinez ended the Valahia after infiltrating the old missile silos the Valahia had captured and destroying the control center inside, killing Nicolae Dumitrescu in the process, and subsequently ending the Valahia. The Golden Axe Plan Crisis started after the destruction of the Valahia's headquarters. M42 Squadron learned of the Golden Axe Plan from Varcolac Squadron during the air battle over the silos. Following the mission, M42 Squadron left the IUPF in order to stop Andre Olivieri's real plan.
As Antares One was making repair-and-refueling efforts, the Golden Axe Plan Private Army launched four Orgois to destroy the M42 Squadron who knew their plan. Despite overwhelming odds, Antares One destroys all of the airborne carriers and their escorts.
Antares One then initiates a joint attack against an enemy airport in Nevada and a new Spiridus. A new Sprirdus is equipped with the READS radiation defense system. READS is used to protect the Hi-TASM launch ports from enemy missile fire. Martinez Security ground forces attacked the missile base in Nevada and launch cruise missiles powerful enough to disable READS, giving Antares an opportunity to attack the Hi-TASM. Both the new Spiridus and the missile base are destroyed after intense fighting.
Finally, Antares Squadron heads to San Francisco to stop the GAP Private Army from completely damage to the city. Then, the USN Third Fleet Commander Davis provided backup for Martinez's mercenary forces. Antares One destroys all Golden Axe Plan forces. However, Varcolac Squadron arrives in their new superfighter GAF-1 Varcolac. Varcolac Squadron attempted to shoot down Antares One, but no success. After a long fight, Antares One shot down all of Varcolac Squadron's members, including Sulejmani. Then, Antares One destroyed the underground data center at Olivieri Life Insurance, killing Olivieri himself in the process.
The Golden Axe Plan crisis ended with the destruction of the underground data center.
- Antares One
- Antares Two (Only in MP)
- Antares Three (Only in MP)
- Antares Four (Only in MP)
- Milosz Sulejmani (defector)
- Daniel Oruma (defector)
- Tolya Kiriakov (defector)
- Faryd Gaviria (defector)
- Fredric Burford (Air Force commander)
- Kyoka Hazawa (operator)
- Michael Arena (operator)
- Graham Hartley (operator)
- Sara Andersson (operator)
- Canopus (Burford's AWACS)
- Antares Squadron
- Rigel Squadron (Formerly)
- F-22A Raptor
- F-4E Phantom II
- Su-37 Terminator
- F/A-18E Super Hornet
- Tornado IDS
- MiG-29 Fulcrum
- Su-27 Flanker
- Every unit from Martinez's air force is named after stars.
- Rather ironically, the logo of Martinez Security bears a resemblance to the Spiridus during the attack on London, as the M is the ship and the S is the electrolaser cannon.
- The company makes a brief cameo in the opening scene of Ace Combat Infinity, during the introduction of the Advanced Automated Aviation Plants.