The American company Electronic Arts Inc (EA) has made the source code of the games Command & Conquer: Tiberian Dawn and Command & Conquer: Red Alert publicly available. This code should help the game community to develop mods and maps, create custom units, and customize the gameplay logic. We all now have a unique opportunity to plunge into the history of development, which is very different from the modern one. Back then, there was no StackOverflow site, convenient code editors, or powerful compilers. Moreover, at that time, there were no static analyzers, and the first thing the community will face is hundreds of errors in the code. This is what the PVS-Studio team will help you with by pointing out the erroneous places.