The way Penerbad rotary wings being construct actually still influence much with US Army Air Cavalry concept originated in Vietnam era.understand it right in Indonesia the five squadrons of the Penerbad all seem to operate a rather eclectic mix of helicopters (and fixed-wing aircraft) that doesn't seem much tied to a specific mission - outside Skadron 31 for air assault ? - and mostly seems to center around providing a generic squadron-sized attack support
They got Bell 412 as Combat Transport with some of them equip with Weapons pylons, Scouts/Light Attack with NBO-105 that now being replace by Fennec, and Heavy Attack with AH-64E. This seems what they are aiming as standard.
Along the way come Mi-17V and Mi-35, which now combine to one hybrid squadron. Those Russian made Helicopter being procured begin at first decade for TNI-AD to get heavier Combat Transport then Bell 212/412 at the same time they also want to have Heavy Attack capabilities with Mi-35.
From what I gather from Media or even talk with Army personal (during Military Expo), they like what they can get from Mi-17V but not so much on Mi-35... especially now they can get access to AH-64E.
Problem with Russian assets in TNI is the support and maintenance cost infrastructure that need to be build in order to make those assets operate more efficiently. Vietnam or India don't have that problem since their support infrastructure build around mostly Russian assets, however Indonesia build more for Western assets. Like I said in this thread or other Indonesian thread, that's the main problem for TNI (especially the Army)in operating Russian assets now.
Back to Rotary Wings on Penerbad, what they are looking now is Heavy Weight Combat Transport. Seems there's a study by TNI-AD (only got a glimpse of that on local media and forums) on Heavy Transport with Mi-26, CH-53, CH-47 and MV-22 being look at. Seems the study preference goes to CH-47, thus again why this US DSCA on MV-22 being taken quite a surprise with many local media even political circle.
Regardless, Penerbad do have legitimate need for heavy rotary wing capabilities that seems already got support even in Parliament. However the talk are more to CH-47 and not MV-22.
As other rotary wings, Navy Aviation (Penerbal) just like Penerbad also using Western style construct with Fleet Support Transport (in the form of BO-105, BELL 412, and Super Puma), and ASW Helicopter (used to be Westland WASP now Panther).
For me Air Force rotary wings that need to be decided on this question on Heavy Transport. They're now focusing their rotary wings on Transport and CSAR with Super Puma and Caracall. This already enough for AF. Heavy Transport in opinion should belong to Army Aviation (Penerbad).
Just like Fixed Wing Transport, Penerbad and Penerbal should stay with their own Transport paradigm now on Light Transport only. Heavier Transport should belong to AF.