I beleive if you build captain to max equip, pen arm and attck.jewel and you will do all mission with no problem...just give him bomber to boost his attack even more.....captain,mouse,selene,gera,celine and you will be able to.destroye fastly everyone
16-6 has a really strong geno lock-in for you. Use 3 bombers and one good healer for effect and you are good to go. Best healer in this situation would be alia with clara at second