Hey - turns out IRC is out and something a little more modern has taken it's place... A little thing called Discord!
Join our community @ https://discord.gg/JuaSzXBZrk for a pick-up game, or just to rekindle with fellow community members.
Judging by previous experience it will work offline but it wont work online.It looks like the sniper zoom texture as well as the other default crosshairs are located in the bootpack textures. What you could try is to rename RRECTICLE (current zoom texture) and import the new crosshair under the RRECTICLE name. I'm not sure if this will work or it could blow up your UT. The best way to try this is to install another copy of UT on your system and play with that one