The mech junkyard

You come across a mech junkyard far from the arena,all types of rusted, destroyed are laying down in the junk mech pile,it is your duty to upgrade yourself as you are the biggest and strongest rusted mech who has lost an arm,two legs and a part of the torso.It is like an adventurer RPG.You should defeat mechs that come in your way,select your mech clan,be a tank,scout,assault or all,good luck...(DESCRIBE YOUR MECH,STYLE,TYPE,ADAPTATION,GUNS,WEAKNESSES,STRENGTH AND YEARS PASSED SINCE MANUFACTURED FIRST, IGNORE THE MECH IN THE PICTURE)