2nd one:(Copy pasta from my regected character application. Sue me.)

Kanrabat

Allegiance: Autobots
Function: Warrior
Alt. mode: KOMATSU GD 655 MOTOR GRADER with snow-plow
Weapons: A small hidden basic lazer in alt-mode with an almost indestructible plow for, well, plowing, but also, ramming. In robot mode, he have a Armor Axe that can power-up to be more deadly (at the expense of his own energon). His plow become his -almost- indestructible shield. The only firearm he have is the basic regulation lazer pistol a security guard at a mall would have. He barely use it and have poor marksmanship.
Height: 31 ft
Quote: "I will be your blade. I will be your shield."
Strength: 08
Intelligence: 04
Dexterity: 06
Speed: 04
Endurance: 09
Courage: 08
Firepower: 03
Accuracy: 03
Melee: 08
Tech Skill: 05
Charisma: 04
Field Generator: 08
Rank: 04
Profile: Kanrabat was born in a relatively peaceful Cybertronian colony. There was no Autobots, no Decepticons. Only robotic life. Kanrabat entered the peace-keeping academy at a very young age with dreams of becoming one of the top peacekeepers. Unfortunately for him, he wasn't that great at shcool. He barely managed to pass the shooting course. He flunked leadership and planning. But he was a natural at wrestling and mele combat. He also was the first in line to protect everyone in training. He graduated, but he did not earned a glorious job. He was a bodyguard for a high ranking official. This was the most boring job ever.
However, one day, THEY came. A group of rogue warriors and bandits came into town to pillage, kill, and destroy. At first, Kanrabat did not know what to do. He panicked and he sought his master. He arrived too late. The politician was killed right before Kanrabat's eyes. This made him rage. A lot. Whe plew through his master's killer like a plow through weat. He calmed down and he saw the destruction he made. His first kills made him retch. He was about to fall on his knees to cry, when cries for help pulled him back from his fragile state of mind to a strong sense of duty. He had people to protect. Workers, fembots, protoforms... they needed him. He used his trusty shield and massive body to protect as much people as possible so they can escape. If an ennemy came too close, he was quickly dealt with by axe.
Kanrabat was quickly seen as a serious threat. He was surrounded by a dozen of ennemies. They shot at him all at once. Instinctivly, Kanrabat braced himself behind his shield. Unexpectedly, a powerful forcefield surrounded him. Pleased by this newfound ability, Kanrabat held on. Unfortunately, Kanrabat was quite inexperienced, both in his abilities and his combat skills. The forcefield quickly depleted Kanrabat's energy reserves, making him tired and vulnerable. He was shot repeatedly and was left for dead in a scrapheap.
Abilities: Can generate a powerful forcefield to protect himself and his allies on a max spherical radius of 100 feets, Kanrabat in the center. That forcefield protect from laser, bullets, sharpnel, and explosions. However, large objects like bots and vehicle can come and go unhindered... ally or ennemy. He can also perform basic repairs and first aid.
Weaknesses: Kanrabat is very weak at gun skills. He only feel confortable with his basic academy gun. He can aim and shoot, but he must be standing still and be undisturbed while aiming... a large target! He also take his protecting duties very seriously. If the one who he must proted get killed or hurt, he will not forgive himself and failure depress him for a long time. He's also the kind of guy to act before thinking. He'll be the one charging suddenly while welling "Leeroooooooy Jenkiiiiiiins" even if he have no clue who that is.
A long time later, Kanrabat found himself in a repair bay on board of a spaceship. The repairbot said his remains were found on a old abandoned colony. In all the old corpses and debris, his remains contain his still active, but dormant spark. They salvaged his sheild because of it's incredible composition, and they gave him a new and sturdyer body. Kanrabat learned of the Autobots and Decepticons war. He found out that his colony was one of the many victims of the rising Decepticons... and that this incident took place MILLIONS OF YEARS AGO! Swearing not revenge but to serve and protect, Kanrabat joined the Autobot cause.
After a real military training, he was sent to a mission to protect a small northen village on a far off planet named Earth. Uppon arrival, Kanrabat was very unfamiliar with the planet and the main species of strange and small little fleshings that inabitated this planet. He was even more surprised to be ordered to scan a local vehicle and transform into it. Of course, he knew how to change into his rammer alt-mode, but THIS? He scanned a local snow-plower that came by. He found this new shape quite confortable and he felt at peace rolling and plowing snow. Of cousre, the Decepticons HAD to come and disturb the peace. He fought, he protected, and he was overwhelmed. Again. But this time, it was different. This time, he had teammates to defend him. Victory was quick. Kanrabat appreciated the fact of having teamates.
To this day, he continue to plow snow in the north, waiting for mission call. When that time come, he'll be ready. And THEN he will make the Autobots leaders proud.