You might get more responses if the subject described your question. I tend to skip over things like "quick question" or "help, please".
As cleobis said, you can add
effects that mimic guns, bombs, napalm and stuff. They are just effects so you can't shoot down other planes or bomb buildings. Many of these are in the library and there is a whole page full of them (essentially the same ones that are in the library) here
http://www.geocities.com/chris20005649/ The effects designed for FS2002 should work fine in 04.
And there is a Tornado with guns and bombs
and sounds here
http://www.simviation.com/fs2004military30.htm I can't vouch for it because I haven't installed it yet but Rob Barendregt is a good designer and I would trust anything he made.