No, I wouldn't like an animation either, like replacing a loading screen with a cutscene. I just want the ladder to be like the house stairs: you use them freely up and down and not loose the control of your character, all that's changed is that your hands are no longer free to fight while climbing. Let's make this clear people, the video I posted in the first post is not an 'animation' climbing, it's not that I clicked on the ladder and the character did the climbing animation herself, it's 100% controlled by me. I could have stopped in the middle.
Still not sure:
Variant1: Click on ladder, be teleported to other end, done, no loading-screen neccessary when within one cell. Done it several times in my MW mods.
Variant2: Click on ladder, lean back and watch an animation. A more tedious variant of #1
Variant3: Click on ladder get into ladder-climbing-mode move up / down and leave ladder when you're at the other end - even more pontless than #2
Variant 2 and 3 just waste my time with animations and an utterly boring mini game.