Although this character doesn't take part in the main mission, he's part of a support squad that trains new recruits and provides back-up during hostage rescue missions. He's a professional's professional who appears and disappears sporadically and is recognized by all as an expert at hostage rescues. Since he appears in the guise of a rebel grunt during missions, he's rumored to be a former mercenary or a rebel army soldier, but his true identity remains unclear. One mustn't forget that behind the flashy success of missions are the steady efforts of pros like him.
Tequila is unlocked by completing all 38 missions. He is able to use every special weapon and select any mission (including Mission 31's three entrances). Tequila has only one life and cannot earn any retries, so he has to complete the mission in one go. On the upside, any POWs saved are counted even upon death.
- Unlike Gimlet and Red Eye, his gun does not change appearance by the weapon collected.
- He is the only character that has been excluded from appearing in Metal Slug Defense and Metal Slug Attack.