I have been unable to edit some texture files because I cannot access them using the unrealed without it crashing. From information I have gathered this is a common problem on newer systems especially post "Windows XP". So until i have access to an older system that will be more compatible, I will be unable to change some of the stretched aspects of the HUD such as when zoomed in with the sniper rifle.
I plan to make use or acquire an older system that should be more compatible fairly soon. I am also still able to modify most of the stretched hud elements with my current system so you can still expect updates in the near future.
I can do it for you. I've got 4 years of modding experience and I can do that with Win8.1 as well as with XP.