Expect I am talking about it in the context of a war
Which would result in Turkish forces overrunning Armenia
As we both clearly know wider Russian action against Turkey would be a non-starter and wouldn't even be necessary. At best Russian military action would be limited to using forces to defend the delivery of the missiles to Cyprus. Once delivered, it isn't Russia's problem anymore. The Turks would be highly unlikely to attack the missile shipment itself (hence Russian retaliation against Turkey would be unnecessary) . Any military action would occur over Cyprus, which would mean Article V of the North Atlantic Treaty is unlikely to apply since the treaty doesn't cover Cyprus (or at least can be interpreted as not covering Cyprus). A Greek-Turkish skirmish in the skies over Cyprus would probably not be unlike the Israeli-Syrian war in Lebanon, in that Israelis fighting Syrians in Lebanon did not result in wider action by the Syrians in Israel (no bombing of Haifa or attempt to attack the Israeli forces in the Golan Heights) or by the Israelis in Syria (no bombing of Damascus).