Mercury is a long range anti-air missile battery. Built by all T2 land/air constructors it piles up to five missiles (14s to produce one) that can shoot across great distances and deal ludicrous damage to aircraft. A single missile can take down most air units. Great for countering Liche (atomic bomber) runs, when used with SET TARGET command. Built on the extended front-line, thanks to its range it may be used to slowly dismantle enemy’s fighter wall.