HUD: weapon/icon statusbar alpha adjustment
The cvar "sbar_alpha_bg" only works for ID1 icons.
It does not work for Mission Pack 1 + 2 icons.
So you cannot adjust the transparency of the viewsize 100 weapon/icons, which are introduced in MP 1 + 2.
Now that we have external replacement HUD´s for both Mission Packs, I noticed this issue.
Workaround (until LordHavoc fixes it):
Set the cvar "sbar_alpha_bg" to "0.7" (in all your config´s).
This will compensate the issue and brings the best visual for ID1 MP1 + 2.