The BoB Freeware mission set "Zerstorer" has been uploaded and will appear in the mission downloads soon. This is an add-on to the BoB JG-2 fighter and KG-54 bomber sets. If you have the KG-54, you need only add the German and British "aircraft as facility" files and "vehicles as facility" files available here, as you would already have the planes.
Here is an excerpt from the readme info.
Wulfmann                                    

Ruff-Missions BoB Zerstorer (Bf-110)

This 14 mission pack has player flying the Aviation History Bf-110C-3 and C4B in the
August and September months of the Battle of Britain.

For these that have already downloaded and installed the BoB KG54 bomber set, there
are only a few things you will need to fly these missions.
It uses all the same aircraft;
Aviation History bf-110C-3 and C-4B
3- Ju88A4-Kamp54, KG54 LB and KG54W
2- FM 109E-40 and E-41
PD Spitfire
PD SF Hurricane79sqdrn
All the Ground Crew ships (Except Cam-ship)
Aviation History Weapons pack
Spawn files from KG-54 set.
Captain Black's Facility ships.

New to this mission set are the German and British "Aircraft as Facilities,"
Available at Sim Outhouse, Netwings (aircraft sections) and Simviation (Misc)
Also the "Vehicles as Facilities" from the same three sites must be included.
Included in a zip in this mission pack is an update for those facilities.