The three-part “Half-Life To” series is an audio playthrough of the game Half-Life 2 by Valve. The third and final installment of the series, “Half-Life To: The Return of the Breen,” is an exercise in futility... and glitches. This episode features an honest-to-god ghost army, stuck birds, watermelons, dangerous text messages, Bumbling Barney, the Perfect Strangers theme song, Robert Culp talking, and a really stupid final battle. Chapters 10-15 are tackled (Entanglement, Anticitizen One, "Follow Freeman!," Our Benefactors, Dark Energy, and Credits). Will this playthrough be completed before the computer catches on fire?