terranova wrote:"You clench your weapon tighter - You may need it more than ever."
I know I shouldn't see anything wrong in that, but I do. (Don't be dirty!)
Just for the sake of it, I'll try some more observational, less extra-sensory reports; but they truly are harder to make. For anything I suggest (and possibly for all suggestions), they are nothing more than potentially helpful thoughts. Take a single word, take an idea, take a whole sentence, or take nothing. Just try to be awesome.
"Terrified beasts are looking for cover." (scatter, scuttle, scurry, hurry)
"You hear a beastly howl from far away." (You hear the howl of a faraway beast.)
(I try not do say too much about sound, since the description must not be disproven by ambient noise.)
"A foul smell wafts towards you." (grazes your nostrils)
Crossing over to fear of the dark / ESP:
"You sense movement in the shadows." (increased/increasing movement)
"You sense the burning stare of a hunter." (You feel the prickling sensation of a hunter's gaze.)
"You (realise you) haven't seen the worst yet." (You know there is more coming.)
-- Another thing that would be cool --
If you could actually reduce ambient noise (remove/silence a number of nodes, perhaps lower the volume on others), you could provide a serious air of anticipation. You could have it happen at each "wave", or according to random chance, or with specific descriptions. (A foreboding silence...)
I think tids and scripts should be able to accomplish that, unless there is something special about zdoom sound things.