I installed this game again after years. Need some help

https://preview.redd.it/l1mb5956uwoh1.jpg?width=1555&format=pjpg&auto=webp&s=fc2ac3bcaaeb5ce0c9aa986b7b9391e95b2b84f9

I am installing the game after years. The last time I played was probably in 2023 idr.

I just want to ask about this. Are they really giving free mythic and legendary weapons at the same time. How to obtain these shards and can I still get the AK 117 lava remix for free or have I missed out