All you have to do to get that annoying begining of halo out is, right click on the halo icon. Go to properties, look at the right of the word "Target:" and there should be some stuff written, what's written in there is where the file is located. All you do is put -novideo at the end of what's written there. This is what it should look like when done or something like it (look at the end of what's written not the middle or begining)
"C:\Program Files\Microsoft Games\Halo\halo.exe" -novideo
copy paste that in there if you want to be lazy
Also if you use console then all you have to do is copy paste this in there:
"C:\Program Files\Microsoft Games\Halo\halo.exe" -console -novideo
click apply then ok then get on halo, you'll see the diffrence.
sorry.