Help on DL

hey peoples, this is my first post so please be kind.

i need some help on Dreadnought Levithan, i just can't get by those damn judges, so any help is totally appreciated. okay my character stats are as follow,

Vaan-main tank-lvl8 267hp 39mp iron sword and helm, bronze armour, leather shield.
Balthier-Supporting caster/warrior-lvl8 320HP 31 Mp oaken pole, head gear, cromed leather
Fran-healer/sniper-lvl8 308HP 39MP shortbow, onion arrows, head gear, cromed leather.
since i don't use Basch at all i'll leave him out.