Hello,

this is a Catalyst-Class Missile Battery from the video game "Homeworld: Deserts of Kharak".
Missile Batteries are especially effective against aircraft and groups of smaller vehicles. To be able to attack ground units they have to get their mortar ability first.
Even though Support Cruisers and the Kapisi itself are capable of defending against aircraft, it still is a good idea to have a few Missile Batteries around just to be sure every incoming aircraft gets destroyed.
Being produced by Kiith Soban it is no wonder Missile Batteries and Armored Assault Vehicles share an almost equal body.

Enjoy!