If you buy them they'll come with another perk, Rain Blows, that increases melee attack attack speed, perfect if you're up for punching the living
snot out of enemies of the Tower and other Guardians.
On the COG side of things you get emplacements to help you hold your ground, and a choice of four character classes to play as: the engineer can repair things and deploy sentry guns: the medic can revive her team with stim - grenades; the scout can clamber up to high ground and lob sensor grenades; and the soldier can drop ammo boxes and beat
the snot out of the enemy team with a grenade launcher.
Although, I did praise the linking system earlier, that doesn't mean it comes without faults, like several different occasions when I'm in the middle
of laying the smackdown on the
enemy, my linked partner decides to guard me from
enemy attacks when I'm the one that's beating the
snot out of them, you have to wonder if my allies are trying to protect me or the
enemy at times.