203 DROPSHOTS:

First you click on bridge mission and the on explore map and you spawn in assault side of bridge.
Open the console and type: mpcheat class g ------ this will give you the 203 rifle mod.
Open console and type: deathstalker --------------for unlimited ammo.
Open console and type: bind (whatever key you wish, I use n) viewclass projectile.

Then you try shooting the 203 in the direction you want it to hit and press the key you bound to viewclass projectile.
This will make your camera view follow the 203.

The easy one is to sit on the right side of the first naked tree at assault spawn and aim a bit over and a bit left of the closest pinetree in direction of the defense tower.
This should hit the defense tower arch if done correct; there is big margin for error on this dropshot opposing to the long shot where you hit behind the defense tower.

FRAG PRACTISE:

If you wish to practise frags just type mpcheat class r (or any other class that will give you atleast 1 frag), followed by the deathstalker.
Then to make the camera follow the grenade in console type: bind (the key you desire) viewclass AGP_weaponpickup [NOTE: If you dropped a weapon on the ground that be shown when pressing the bound key]