The current Group Build, featuring Luftwaffe aircraft in defense of the Reich, ends on May 8th. Unfortunayely, being a bomber, the HeIII wouldn't qualify. The next Group Build is centred on the Pacific Theatre of operations, commencing late April, and full rules/guidlines will be 'published' shortly.
However, if you have a look at the Group Builds Poll thread, you will see that there is a build for Bombers/Heavy Hitters coming soon.
It would be great to see some of your small-scale models in these builds, so see if you can find a subject and join in.
Terry.