The ATC in this is not nearly as sophisticated as FSX, or even Falcon for that matter.
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The initial bearing that the tower provides is to guide you to intercept the ILS beam. Once you are near the beam, you would use the ILS to steer you towards the runway heading and the tower will call out your glideslope. Using ILS, instrument landing can be done as I have had no problems. This is the US birds though, not sure of the ruskie capabilities.
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Not much more to it. Tower won't even direct you if you are on a collision course as I found out. My wingie and I crossed paths very close without a peep from the tower.