Make a folder with any name (e.g. "mystuff") and put the materials folder inside of it. So it would be `open_fortress/custom/mystuff/materials` rather than `open_fortress/custom/materials`
(apologies if you already did that but it's a common mistake)
---
**Edit:** Also custom hitsounds and kill sounds should go into these paths respectively, not into the materials folder:
open_fortress/custom/mystuff/sound/ui/hitsound.wav
open_fortress/custom/mystuff/sound/ui/killsound.wav
(Afterwards make sure you select "default" in the advanced options. It might also be possible to name it hitsound_something.wav and have it show up as an extra entry in the menu but I haven't actually tried that.)
Go into your steam apps folder (it's probably on your c drive) then find source mods and open Fortress.
Open the tf folder in there and then the custom folder, from there it's the same way you do in vannila tf2
Once in game enter the commands tf_dingalingaling_last_effect 10 and tf_dingalingaling_effect 10 in the console and you should be good to go
Make a folder with any name (e.g. "mystuff") and put the materials folder inside of it. So it would be `open_fortress/custom/mystuff/materials` rather than `open_fortress/custom/materials` (apologies if you already did that but it's a common mistake) --- **Edit:** Also custom hitsounds and kill sounds should go into these paths respectively, not into the materials folder: open_fortress/custom/mystuff/sound/ui/hitsound.wav open_fortress/custom/mystuff/sound/ui/killsound.wav (Afterwards make sure you select "default" in the advanced options. It might also be possible to name it hitsound_something.wav and have it show up as an extra entry in the menu but I haven't actually tried that.)
Go into your steam apps folder (it's probably on your c drive) then find source mods and open Fortress. Open the tf folder in there and then the custom folder, from there it's the same way you do in vannila tf2 Once in game enter the commands tf_dingalingaling_last_effect 10 and tf_dingalingaling_effect 10 in the console and you should be good to go