When u jump you can aim your fist of havoc at enemies below?

what I mean is ...I jump...push my two bumper buttons for my havoc but is still no different.

Heres how i see it , aim assist works by slowing your curser down when it hits an enemy , you can see how it works by going into an empty server with a friend and dragging your aim back and forth past him. If you have a high sensitivity and therefore a faster
moving curser it will have a lesser effect. As its travelling faster it will pass the enemy faster (although it will still be slowed by the aim assist mechanic) Some games utilise the "snap to" mechanic where if you ads near an enemy your curser will automatically
jump to the enemies body , I think they utilise this in single player too. As far as i know COD doest use snap too in multiplayer so i would say that yes the higher your sensitivity the less effective aim assist would be , ive heard that most "pro's" turn
it off anyway , I did in BF3

This really sucks with an archer character. It really makes me angry when I can see an enemy on a ledge below me, but can't shoot it because when I go into manual aiming, I can't hit anythign because There is a restriction to how far up/down you can aim.
It sucks because it makes everything close quarters, which does not bode well for my archer build. I can fight enemies in CQC, but not when there is a tiny ledge to fight on.

How can you shoot when your aim jumps between targets? Autoaim suks

Also, if you don't want your pyromancies / sorceries to be cast in some useless direction ( you said you threw the fireball at the floor ) you should press the right analog stick, as it will lock on to 1 of your enemies. It will then aim the ball at the
enemy. You can change which enemy you're aiming at by just moving your right analog towards an enemy after locking on.

Also, don't fight skeletons yet, they will come back alive when you kill them