GDI Campaign Mission 15: Berne. Command & Conquer 3: Tiberium Wars.
Mission completed in former WR time of just 9m 44s in-game time. Hard difficulty, version 1.09 of the game. 100% completion, meaning all bonus objectives complete, and all intel entries discovered.
The trick for this mission is to attack the back of the main Scrin base super early; this causes the AI to keep their forces at their bases (aside from the stormriders).