Thompson replacing ump45 with hud changes addon - Day of Zero mod for Counter-Strike: Condition Zero Deleted Scenes

Since there are so many resources from day of defeat, I would utilize them to feature a dod singleplayer mode featuring a war story in ww2 by modding condition zero:deleted scenes, however,making a mod on my own is very tiring, and I just know how to do modeling and mapping, therefore if there is no help, I could just simply make a mod with overwritten weapons models, not even changing the hud nor the weapons data