Bio-Augmentation: Pituitary and Thyroid Augmentations plus deep tissue electrical shocks to reheat a surgically repaired body on ice, along with implied bone, muscle and joint augmentations for added strength, durability and speed, along with other assorted goodies. Later kicked up a notch with gene therapy.
Hand Cannon: The original film equipped them all with Desert Eagles.
Hollywood Cyborg: With the exception of the headset and the blackbox, installed in the thighs of the UniSols, there really aren't many cybernetics in a UniSol's body. It's implied that there are additional bone and muscle augmentations for the UniSols, to add to their Made of Iron and Super Strength capabilities.
Monogender Monsters: Averted in the non-Canon movies, where there are female Unisols. Played Straight in the Canon movies. As to why there are no female UniSols, no one knows. It is a possibility, that the process of augmenting a female combatant would be much more time-consuming, as they would have to add more bone and muscle mass to make them as physically strong as their male counterparts without the muscle booster.
More Dakka: The UniSol 2500's were equipped with OICW rifles.
Dark Messiah: Becomes this in Day of Reckoning. He is seen as a messianic figure by the liberated UniSols, and has created a church-like compound deep in the swamps of Louisiana. They are seen as a separatist group by the US Government.
One-Man Army: Becomes one at the climax of Regeneration. He manages to wipe out the company-sized force that the General brought with him to occupy Chernobyl, without much resistance, and does so with a combination of small arms fire, knife work, and lots of good ol' fashioned hand-to-hand combat.
Fingore: Loses his fingers to Magnus, who used an fireman's ax to chop his fingers off.
It's Personal: Wants to take down Deveraux because he killed his family. Or so he thinks.
Made of Iron: Survived many heavy impacts including being thrown through a wall of bedrock by another Unisol and having Devereaux almost cut his arm off with a sharpened machete. Granted, he's a cloned UniSol.
One-Man Army: Becomes this after he is captured by the UniSol Army. He proceeds to wipe the floor with a lot of UniSols attempting to stop him, and takes down both Scott and Deveraux in the process.
Blade Below the Shoulder: Sports one. He uses it twice to kill two of the four UniSols sent after him, and attempted to use it against Deveraux. He did use it against Captain Burke, stabbing him hard after Burke made a feeble attempt to take him down.
More Dakka: Gets in on the action, with a heavily modified AK variant loaded with double-stack magazine, which he has no problem unloading a ridiculous amount of lead downrange in the process.
One-Man Army: Capable of wiping out an entire security detail by himself, along with an incredible amount of Ukrainian Police, in an effort to kidnap the children of the Ukrainian Prime Minister. He later wipes out a company of soldiers by himself.
Straw Hypocrite: Possibly an unintentional example; he declares in his speech that UniSols act without emotions, yet some of them smiled during said speech. Both Romeo and SETH themselves also emotes throughout the entire movie.
Mad Scientist: He is rather amoral, viewing ordinary soldiers with disdain and highly praising the efficiency and deadliness of the NGU. As a middle finger to Burke, who had stated his intense dislike for the UniSols, he is cloned at the end of the movie and made into a UniSol.