3:56 AM - Banshee fliers are seen scouting the base
4:24 AM - All troopers at the base are ordered to sniper nests and anti-aircraft guns
4:41 AM - The first Phantom dropships appear near the base
5:00 AM - Squad 596 is ordered to the facility
5:37 AM - Squad 596 arrives at Rho Outpost
5:40 AM - Spartan-IIs arrive at the outpost
5:47 AM - The first wave of Covenant is dropped off
6:09 AM - The CO of the base is killed by a Sangheili Zealot
6:13 AM - UNSC Marine reinforcements arrive
6:22 AM - Three Pelicans carrying Jackhammer launchers, and ODSTs arrive
6:25 AM - An ODST carrying 20 pounds of C-12 explosives jumps onto the Phantom leaving to pick up more troops, and the ODST detonates the C-12, killing himself, but destroying their last transport in the process.
6:25 AM - The first wave of Covenant forces are fought off, the South wing is beginning to fall apart
7:00 AM - UNSC forces rally at the North wing, and Army Captain J. Miner sets his sniper team up at the highest vantage point, where they wait for the next wave
7:29 AM - Rho falls.