Yes, in that video, Ukranian troops are marching to their airbase. Russian soldiers took over the base, and don't let them in. The Russian soldiers all have their isignia removed, but the uniform is distinctively Russian, there is no doubt about that. Russian media present them as "Crimea self defense forces".
At 0:55, one ukrainian shouts "US with us! the world is with us!" They also say that they did not bring any weapons and want to talk.
How I see the situation:
There are many reasonable people in Russia who see that this is not right (
1,
2,
3,
4, use google translate to translate into your language). They inderstand that Ukraine is an independent country, understand that people of Russia will only get troubles from all this. For example, in the past, there was a discussion between EU and Russia to cancel visas with Europe for Russians - forget about it. Russia was a respectable political power, and a member of G8 - forget about it.
But, what is funny, Putin's electorate doesn't want to travel to Europe, so they don't care about EU visas, they are pretty simple and gullible people - they can be manipulated into thinking that this incident in Crimea is a demonstration of Putin's and Russia's power. When for the the rest of the world, this is a sign that you cannot deal with Russia, that Russian politicians are irresponsible idiots. Many Ukrainians will hate Russians, not only Putin, they will hate all Russians. Many people in the world will hate us as a nation because of this BS. Why do we do this?!.. Because someone in Kremlin could not install Civ V on his computer? All this can make a long-lasting negative effect on the economics of the country, and its international image. This is just stupid, this is just wrong.