{steam version} Quad Machinegun not on list

[Twotribes]

I researched a quad Machinegun which is the IV in the line, it is available for production and appears on the list when making new units but I cant up upgrade older units the gun doesnt appear in the list and on the master list for all models it is not there either.

[Voker57]

MG and quads are different units, you can only replace them.

[Twotribes]

LOL you can replace them via mass replace which I did with the first couple this one does NOT appear on master model list but the first 3 do.

[SamuraiProgrmmr]

I may be totally wrong about this and if so, I apologize.

My assumption from context is that the 'master model list' is the list of models you choose from to upgrade/replace.

There is a small button at the bottom that scrolls to the next page. There is no scroll bar. Nor are there buttons indicating a new page like in other places in the game. Is it possible that the model you are looking for is on the next page?

[Twotribes]

Ya it was lol but I still cant mass or otherwise upgrade to it.

[Vic]

ORIGINAL: Voker57

MG and quads are different units, you can only replace them.

If i understand original question correctly this is indeed the answer.