Not forbidden or frowned upon unless you don't backup your original files or use a mod (and then come back asking how to get your original sounds back :P), to change the text that a certain voicecom would use just use the voicecom command, e.g. :
But note that just because you modded your original voicecom sounds, doesn't mean that is what others will be hearing, unless you release and they downloaded and are using your mod.
[SELECT ALL] Code:
/voicecom sorry "Sorry dude!"
// /bind KEY [voicecom sound "message here"]But note that just because you modded your original voicecom sounds, doesn't mean that is what others will be hearing, unless you release and they downloaded and are using your mod.