SotSS is a 4x/RTS mod based on the Universe of Freelancer/Starlancer
The Liberator is a heavy cruiser designed for Troop transport over direct combat. It's slow and heavy but carries vast amounts of marines and military hardware in its storage bays.
While it's primary mission is the transport and deployment of Marines, it is armed with 6 broadside Rail-Cannons (3 each side) and has two defense turrets facing each direction to ward off fighters.