It is necessary to have watchers at hand who will bear witness to the values of Tradition in ever more uncompromising and firm ways, as the anti-traditional forces grow in strength. Even though these values cannot be achieved, it does not mean that they amount to mere ideas. These are MEASURES. Let people of our time talk about these things with condescension as if they were anachronistic and anti-historical; we know that this is an alibi for their defeat. Let us leave modern men to their truths and let us only be concerned about one thing: to keep standing amid a world of ruins.
It really depends, but, generally speaking, just because of the mechanics of it, voice-over is easier because there is no hair, no makeup, no wardrobe, no fittings, no line memorizing. You don't have to me woken up in Russia at 6 in the morning and go film a scene. It's just easier on the body, the family life to do voice-overs.