When Hud its not necessary, it desapears

[Foxhead]

The type of mod that im making its mostly atmospheric and to most be appreciated than played (when played i mean, killing monster and jumping around with a shotgun. but it will have these kind of Doom-like things, but it will not be Doom Traditional).

So... There's some way to make the Hud disappear when not needed? like if im shooting, it stays, but when a short period of time passes it disappear

[Dude27th]

If you make your hud through ACS and use "HudMessage" you can choose the alpha of the elements that you display on screen.
With that you could have a variable for the alpha , a script wich made that value lower slowly , and another (something like a 'action' script) to make it reset to default alpha.