Outpost 2: Black Sun was not quite as good. I haven't watched it yet, but I found Outpost 3: Operation Spetsnaz. I started the video to confirm it was legit and decent quality and it checks out, I have it bookmarked for later.
Just make sure you can handle a couple of pop ups, nothing crazy, but you might get an new tab open and a new browser open (never download, I never watch from sights that require downloads). You can close the pop/tabs easily.
Click the Continue to Video and then the play arrow icon - don't click the ad graphic - close whatever tabs/pops open and you are good to go.
http://www.movie4k.to/Outpost-Operation-Spetsnaz-online-film-4656314.html
Oh, if sie sprechen nicht Deutsch you might not be interested in that link, here's one in English ;)
http://putlocker.bz/watch-outpost-rise-of-the-spetsnaz-online-free-putlocker.html