Just posting this as Jim was asking about tracers last night, and I don’t think my instructions were too good, so below’s a tutorial on how to use them in BC2.
[youtube:bfzo7y3p]BVpMIZ3ixLw[/youtube:bfzo7y3p]
One thing to note is that this only works for 2 of the 3 types of hand held rocket launchers, with I think the carl gustov being the odd one out, as you can direct it’s fire manually. It also doesn’t work for stationary AT. One of the choppers gives the gunner a secondary fire option to fire tracers, which allows the pilot to fire his secondary missile and almost guarantees a kill.
To remove a tracer you need to fire smoke, drop flares (when flying), or wait about a minute and a half. You could also move out of range, but I think the range is 400 metres or so.