How about 3 types of DoD 3.1b crosshairs?
A poster on the dod forums way back in 2004 wanted a custom cross for DoD 3.1b.
No one had one!!! I bet someone has... anyway, I followed my own tutorial on dodbits.com and made 3 of them way back then.
The instructions are in the download.
There is also a tutorial for making cross hairs for dod 1.3, (the newer steam version) that will be ok to use if you want to customize mine or make a new one for dod 3.1 beta.
Just choose your type, there are three in the download.