I was wondering if the Stormlord super-heavy was in use during the great crusade / early horus heresy?

Just an idea for my ultrasmurfs.
Thanks,

Aquaterry

Please check the 'Pre-Heresy Vehicles And War Machines' thread.
You might have to hunt a bit for the answer.

If it's not there, try reposting your question in that thread.

Sorry, thanks for the guide!

Aquaterry