No, just one or the other.
Standard has no mod plane package included and just vanilla DBW planes in class.dcg.
Modpack2 has the mod planes included and all the entries already in class.dcg (but not the original FUBARed campaign set...)
The patches update a few things, like a typo in the PZL42 loadout, carried over into payloads and timetable...
#1 disable in jsgme first of course,
#2 If you have one of the original downloads your jsgme DCG directory will still be called something like "DCG for DBW 171" so you'll need to rename it to either:
jsgmemods/!!DCG-4-DBW Standard (for the standard no extras patch)
jsgmemods/!!DCG-4-DBW ModPack2 (for the full mod planes included patch)
easiest to copy the name from here and paste to rename the folder.
#3 run the patch exe (whichever one you're using, which will drop the patched files into the newly renamed directory in jsgmemods.
The patches should write directly into the original folders, it's just my mistake for using the same folder names as in the new full downloads (which already include the new files), which was meant to be consistent but was actually dumb... so I better take a time out...
It's quite possible to have both sets installed simultaneously (no need, but if someone wants to...), as the folder names in jsgmemods are different so you can have the basic standard pack and the fullmods pack installed too, but you can only enable one or the other in jsgme of course, not both at the same time.
Mushr00m - indeed, seems DCG still can't handle the new squads, thought it was the old Polish/German bug again, but it's only the new ones, so...
I'll just extend the stock units out to 4 squads each and move all the units to these. Will need new mis and timetable files... hang on a bit, but this time I'll just put the files up directly... need to fix the traffic jam at Yaroslav too...