func_regenerate help

One way that might (yes, might, I haven't tried this) work is to find which sound is being used and replace it with an empty sound (\common\null.wav, I believe is one).

So (possibly) you'd just copy \common\null.wav into the file location where \items\func_regenerate.wav is normally, rename it func_regenerate.wav and if it works, pakrat it in, and done.

You will likely have to extract null.wav from the TF2 GCF.

A dispenser_touch_trigger and a mapobj_cart_dispenser would work to. I don't even think you need the dispenser_touch_trigger, the size and line of sight checks can be disabled in the mapobj_cart_dispenser.

Make one for each team, and it should constantly resupply everyone on the map with health and ammo.

There also is a trigger which can set the health of anyone inside it, forget what it's called.

for the health issue you can use trigger_hurt with damage of -1000 or w/e. its affect is almost immediate and it is silent, as opposed to func_regenerate which has massive delay times (~5 seconds). for ammo you can put boxes on the ground or make strategic places to put the func_regenerate, like in doorways. what's nice about func_regenerate though, is that it not only gives you full ammo, but also restocks your current weapon to full.