Quote: "More smooth movement, id like the player to be able to go through doors and things without bumping around and i dont like the way the guy hits hes head on the roof. And maybe some way to make him to climb over small obstacles, automatically perhaps? prone would be nice. "
This would require the whole engine movement to be rewritten, which would either take a good chunk of your development time, or a very, very hefty payment on your part.
Quote: "Id like to make my protagonist say some one-liners like Duke Nukem(hail to the king,baby)"
Easy, just script it to.
Quote: "third thing, im thinking of a huge scene which would include terrorists shooting at civilians. how do i make that happen???"
Set the factions.
Quote: "+How do i get ladders?"
I don't think that's possible.
Quote: "+People talking to the player like in half life 2 and keeping eyes at the player."
Can't happen. You can have VO, but no lip-sync or eyes kept on the player.
Quote: "+Custom mission objective and such text's on the screen "
Possible with simple scripting.
Quote: "+Chapter select in menu, with a extra survival mode"
Look around the FPSC Chat board for game launchers.
Quote: "+custom hand animations for Easter eggs and such."
You'll need to animate it yourself, and include extra scripting commands and such to make it work (though this might not be possible with x10).
Quote: "+Mounted guns err like deployable ya know?"
There was a mounted MG in the FPSC Chat or Media board at one point, but I think it required Project Blue, which isn't for FPSC x10.
Quote: "+bad guys talking to each other"
All you need there is some voice actors and a sound zone.
Quote: "How long are the time things in the spawn times and so, im not sure are they seconds?? im too lazy to count."
Milliseconds.
Quote: "I saw some youtube video of drivable vehicles, gimme som!! "
I don't think that's possible in x10.
Quote: "Another thing, no download sites where i need to make profiles, at least i want to know if i dont need to pay or do stupid stuff, choose fake iphones you know."
Mediafire.com is always a good option.

Cheesehead for life.