Hello! Only managed to get one game in as I got drafted into the big Rogue Trader game!
The assault was a massive success for the Space Marine scouts.
After an initial ambush which resulted in the lose of a Sergeant and Scout to a Deathspitter shot, the Marines massed and found the Energy Cortex with ony the odd ineffectual trap to deal with.
The final fight involved a lot of tentative movement by the Marines, wearing down the Tyranid defenders, until a suicide charge by the Tyranids resulted in them being cut down in a storm of Heavy Bolter fire and the way to Cortex made free for massed melta-bombs.
The rules are definitely...old. There is a lot to keep track of and is a bit...scatty. Still had fun!