Most likely everyone except who is in the start cast is all at level 1. Then we'll just use an EXP system, like in FF1-9.
There'd be differet levels too. Say Goji has been used in more Mech battles than mine, his Mech EXP and lvl would be higher than mine.
So far this is what I have going for Characters.
Mechs will also be able to get customized.
Gunn - Merc who comes into the cast during the end of 1st disc, pretty well rounded.
Mav - Main Character who is the most well rounded of them all.
Goji - Mainly a Mech Fighter, has the special ability to change into a 50 Foot Fire Breathing Dragon when he reaches a special during Basic Battles.
Beo - Modern Mythological Fighter who joins during the middle of disc 2, but makes mysterious appearances. Well Rounded fighter.
Raz - Modern Mythological Fighter who becomes play-able during the end of disc 2, and middle of 3 then joins the cast full time at the start of disc 4. Mainly a Out-Of-Mech fighter. Another Mysterious Appearance Maker.
Neo Yuy - Joins cast during end of disc 2. Mainly Mech Fighter, can repair mechs mid fight.
Zorak - Mainly Mech Fighter. Rides on the shoulders of a sludge monster(Toliet Monster) during regular battles. Sludge Monster does all the fighting.
Li - Not really a fighter in either category. Mainly Mid-Fight medic.
Cyg - Not really a fighter in either category. Mainly Mid-Fight Mech repair.
Ellis - Well Rounded Fighter.
Lita - Well Rounded Fighter.
Libra - Mech Fighter who dies at middle of Disc 2.
Squall - Mech Fighter who dies at middle of Disc 2.
Kurama - Mech Fighter who dies during Disc 2.
Aries - Well Rounded Fighter, dies at end of Disc 3.
Viper - Enemy Boss during end of Disc 1. Joins cast at start of Disc 2. Well Rounded Fighter. Dies at the end of Disc 3.
Scourge - Modern Mythological Fighter. Mainly Mech Fighter. Joins during start of Disc 2. Dies at the end of Disc 5. Mysterious Appearance Maker.
Char350 - Non-Fighter, Shopkeeper.
Nwshull/Triyun - 2 Stage Enemy Boss Mech Fighter, kills Libra, Kurama, and Squall during Cut Scene. Mech gets deystroyed at middle of Disc 2. Dies at middle of Disc 4.
Crazy 8 - Mech Hangar Owner, becomes a Mech only fighter at end of Disc 2.
Crap People - Most Common Enemy, they can infest humans and mechs.
Street Thugz - Early Enemy
Gato - Main Enemy, dies at end of disc 5.
Char999 - Secondary Main Enemy, dies at middle of disc 5.
Crap Queen - Hidden Final Boss.
Here is pretty much so far what I have on Main Characters. Limit Break like Manuevers are coming next.