Looks farcry from something like Assassin's Creed.
No execution moves from behind?, sliding while running?, prone position?, grappling hook? (I could be wrong as I still don't play the game at all).
BigTNaples said pretty much what I was going to say, but you definitely must be convinced this game is something it is not even marketing itself as.
The developer has gone on record over and over again that this game is a RPG first, and a shooter second.
You'll be leveling your character, customizing skills, customizing your equipment and guns, and have quests and a story to complete like a RPG. The combat is a third person shooter VERY similar to Gears of War. It even has the same roll animation from Gears. Early previewers are saying the cover system works great.
I haven't watched anyone come up behind someone to do a stealth takedown /execution so I can't comment if that's in the game or not. I know you can slide into cover. Prone position isn't there simply for balance reasons and to get you to use the cover system. If prone was available in the darkness zone PvP you'd have a very unbalanced TPS, and one that wouldn't work probably. I can't think of any well made TPS that has prone. (Gears, Last of Us, Uncharted, etc)
Grappling hook...??? what the???
And to sum up --- that has jack to do with animations not looking well.
On a different note: I don't get some people in this thread who are posting and watching videos, but aren't even going to try the beta. It's free for pete sakes. The worst thing you can do is NOT try it, your friends buy it and hype you to get it, then you DO get it and you hate it so you waste $. Or on the flip side you don't touch it, and miss out on a great experience.
Try the beta peeps. Free fun is best fun ?