Biggest problem in this game is ladders imo.

When i try to climb ladders the guy starts to shake left and right, up and down and also goes under the ground. This happens ~30% of time.

When im on the roof waiting for enemy i see him approaching to ladders and next what i see is me lying dead and enemy is standing next to me. This also around 30% of time.

Is this bug or is it connection problem or what?

This is online sync issue. You see yourself on the ladder but the server isn't. When you see that your soldier is starting to shake when starting to climb a ladder or clipping into the ground, get down from the ladder and try again. Trying to force it will most likely not help anyway.

Yea it seems to be something to do with changing terrain levels and server syncing. I get it sometimes on just running up to ledges real fast to climb, or trying go from a dead sprint to climbing a ladder right away. I have got a reflex pause period now before mounting ladders.

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