The Mercury's extremely long-range missiles easily destroys most aircraft before they even get close to your base. Unlike other AA, it builds its missiles over time for a cost in resources.
Build these formidable launchers later in a match to defend your base from strategic bombers.
It can also be build on an extended front line to slowly dismantle the enemy's ''fighter wall''.
Its missile deals 750 damage in a huge radius, almost TRIPLE that of flak cannons, easily taking out multiple aircraft at once. It can build 1 missile every 13 seconds if you have the energy needed, and stocks up to 5 missiles in total. Each missile costs 1800 energy to be build—notably less than most aircraft.
Its missiles can be baited out by cheap air units like scouts.