I understand. It should all be just there, ya know. If someone wants to use it, they can use it. For example, right now, we have modern modular rifles. It may be the 21st century, but plenty of people still use the outdated .308 hunting rifles, MP40s and of course, the AK-47. So, it's just an option to use them. It's just like players who use the Khvostov in the Crucible, just because they can (Which is actually a great PvP weapon), despite being able to use the more modern SUROS.