My force was a 4th edition SM force made of 6 man Terminator Squad led by a Epistolary, a 5 man Assault Squad led by a Master of Sanctity, 3 7 man squads of Space Marines with plasma guns and lascannons, a 2 Heavy Bolter 2 Missle Launcher Devastator Squad, a Venerabal Dreadanaught, a Rhino and a Razorback. My opponent had essentially a heavily mechanised Tau force with 2 Tanks, 1 Broadside Unit, 3 Fire Warrior Squads with Devilfish transports, 2 Squads o Crisis Suits and a squad of Croot. Both armies were fully painted.
Here are initial deployments
The Main Imperial Assault
A unit of Tau in a forest. They did not take part in the battle, do to being too far away from the main Marine assault.
The First Marine Assault defeated, Heavier Units march into the Valley of Death.