How to use binoculars in BF4 campaign

The China Rising Bomber is deployed from one of the control points that is held by your team on Conquest mode. The trailer you need to enter is a yellow "portable" box with a radar disk on the side. Once you enter it, the system connects you to an inbound bomber which flys fairly quickly across the map. The bomber can drop 4 JDAM bombs and a cruise missile during each "load" and if you're quick you can get two loads per run.

You can click on the ground where the bombs are to be deployed to, however with a 5-6 second flight time they are not suited to moving targets, more likely meant for stationary infantry and vehicles. You cannot control the speed or direction of the plane, but you can deploy a bank of 30 flares to avoid any missiles fired at it.

Once you get a kill you unlock the SUAV for the recon kit, a small, battery powered, remote-controllable plane that can spot enemies, lase targets, and (currently) roadkill as many people as you can hit before the battery runs out.

Once the plane has finished it's run and you exit the command unit, there is a cooldown timer before it can be used again.

bobfet1 already said it:

It doesn't look like there is a good way to self-cast an ammo pack.

You can adjust the range your soldier throws the package. If you look closer to the ground, you throw it in front of your own legs. This is how you can supply yourself without moving. Keep in mind that you don't have to stand exactly on your supply, it has a small range. Others, by the way, can also get supplied by this, so if you want to supply only yourself, keep in mind you need a little distance to your mates.