range isn`t always the best lead, personally i like to keep captial ships (large power) back arround stack 4-6, destroyers are usually a good lead for offence, cruisers for defence, when attacking terran strafez is a good lead as alot will lead captial ships, attacking miners lead missle/f class, when attacking guard missle is a must, lots and lots of missle, but mainly mix up what kinds of attacks for each stack
eg: terran vs terran
queens
garuda
sword
tyr
large runner
thor/zeus