I've been playing Mission: Strike since it released on Wednesday, and I've noticed that the collaboration boss that appears in this quest in the Japanese version has been replaced.
This is understandable, however the Wolguarda which replaced it in Mission 3 does not drop the same items, which I would guess is a bug.
The Wolguarda drops the same items as the other M3 bosses, whereas it should be dropping:
- Twilight Rune-C
- Twin Yasminkov 2000H-C
- Satellite Aim
- Nova Strike
In its list of items (list may not be exhaustive).