Eternal Silence v2.0 Beta

Source SDK Base and Half-Life 2 are required to play Eternal Silence
Eternal Silence 2 is a Half-Life 2 multiplayer mod which puts you in the role of a soldier helping to fight the war between the United Terran Forces (UTF) and Neo Galactic Militia (NGM). The mod allows for extremely open-ended gameplay, allowing you to fight fast-paced dog fights in space, bombard an enemy capital ship with a heavy payload, invade the enemy capital ship by foot and attack from the inside, or command the troops and claim victory over your foe.