the anti armor weapon is called the Javelin. the army and marines are using it in Iraq. Like you said, a small charge pops the missile about 10-15 ft from the tube. then its main thruster ignite and it goes up up up and down down down and BOOM!!! anyways, you would think the marines would have been able to resurrect a missile launcher like that: no backlash. they can fire it in small places.
those marines need a fine, reliable anti-armor weapon such as the Javelin.
PS, i know a guy who works for ITT who works for the Government. He has a video of a laser designation system in action. After it painted the target, an Apache Gunship came out of nowhere and obliterated it.
Here's another weapons' question. Why was it that only the Deutsche on Wanderjahr (or where-ever) in book 2 had caseless weapons? I see an almost striking resemblance to reality there. The US military had ripped the G-11 from H&K, and we dropped it... then some American created a gun where the only moving parts are the trigger and the bullet.
Gott, I love electricity... And guns.