OK sorry about that wiki link, for some reason the ")" at the end isn't part of the link in the post (even though it looks like it). If you add that ")" to the end in your address bar, it should work.
About the officers in that first battle scene (in the YouTube link), yes they looked way too neat and clean, and there were an awful lot of them. I can't imagine that many officers looking so sharp on a little dinky 1905 era destroyer laying mines in 1916.
However, the real-life Admiral Kolchak apparently went out with the small ships laying the mines as a matter of principle. He was supposedly something of an authority on mine warfare.
Later in the film a whole lot of enlisted rank sailors gun down, beat, and bayonet a bunch of officers, so the gap in status and ensuing resentment is dealt with realistically to some extent. And Admiral Kolchak throws his dress sword into the ocean rather than surrender it to the Revolutionary sailors on his ship--one of the more dramatic and significant moments of the movie. The real life Admiral Kolchak was not popular with President Wilson or the American commander of forces in Russia 1919-1920. They regarded him as being too monarchist and autocratic, and they refused to help him--this no doubt contributed to the circumstances leading to his execution. And perhaps to the ultimate success of the Red Army.
They made an excellent replica of what appears to be a Borodino class battleship which is featured in the duel with the heavy land artillery. Great scene, well worth finding the movie for it.
The opening scene might be a bit far-fetched in showing them all praying while a very large vessel of at least armored cruiser size is shooting at them without the kind of effect that this would have had, in a straight out chase as depicted, without evasive maneuvering. Granted the future admiral takes out the bridge of the German ship with a fantastic shot, and buys them some time, but it's still stretching it. Nonetheless the scene is exciting and very well filmed, and the ships look terrific.