Finally, after years of searching, I found it ! Thank you very much for this ! - Tested on last version of HLDS and they works very well. - Dproto is not working on the last version of HLDS. So, I used Xproto for test, and is working very well. - I didn't use Orpheu, but the bots worked very well. I will probably test with an older version of hlds + dproto.