This is sound mod which contains 2 types of engine sounds for Mercedes - Benz Actros MP4. It is a SCS stock with a steady tweak, a high quality sound.
This mod Crackle V8 engine sound supports the stock SCS Scania R and Streamline trucks, RJL “R”2.2.2, “T” 2.2.2, the 6.5 Scania V8 Megamod and the Punisher’s Streamline. Video: [su_youtube url="https://youtu.be/KG3hhqYXMFc".
Sound mod "Crackle" variant of the V8 works with the R, Streamline, RJL (R and 4 series), 6.5 Megamod and the Punisher's Streamline. Videos: [su_youtube url="https://youtu.be/3j5an1uTqK4".
This sound is a reworked version after many reworked times, so I think this is the best sound you should use for your MB Actros MP4. Credits: kriechbaum (base sound), Vasily.