He did very well, kill list included Marneus Calgar and 10 Terminator Bodyguard, Tigius, Lysander, 3 Centurions, 2 Vendetta's and a Warhound twice (brought back after scheduled break), only possible due to the sacrifice of James Iyanden Eldar protecting me from tons of assault Terminators.
Anyway, between these games I picked up the latest Horus Heresy Book 2 - Massacre, along with some Mechanicum and the first models for my first Forgeworld only army - 5 MkIII Space Marines to be painted up as Sons of Horus (I've already got a sizeable Worldeater force using Mk6 RTO1 Space Marine 'Beakies' with Angron leading them to many a victory.
Looking in the allies chart in HH Book 1 I found that Mechanicum are 'Battle Brothers' with Sons of Horus, plus I'm not a brilliant painter but their scheme seems like something I could manage.
Well today I cleaned up all the models and glued them together:
The MkIII Space Marine suits without Shoulder Pads (GW did not have any in stock

Thallanx Cohort - are Troops in the New Mechanicum list
Next post, I'll put a bit of paint on them as I have another day off before heading back to work.