Another problem I have seen is that in SOME missions (eg campaign 'River' mission) I cannot bring up the normal gunner's sight (TPDK-1), the mod having improved this to add the range drum and red loaded warning, as below.
Usually, Page Up/Page Down cycles between available sights. But in some missions, in the gunner's station, the only sight I can access is the night vision one.
Page Up/Page Down cycles between an IR illumination on or off version of this sight ('off' as below) but does not cycle to the TPDK-1.
In other missions eg Gunnery training, the TPDK-1 is the default sight for the gunner's station and Page Up/Page Down DOES include it when cycling through available sights. From a quick look at the documentation in the Mission Editor, I do not see anything which enables this to be varied. And it seems to make no sense to have a version of the T-72 with the default gunner's sight disabled.
Any suggestions welcome.
EDIT - just got an answer via the T-72 IW FB page - apparently the TPDK-1 (and dozer blade) are unlocked by progression thru campaign missions!