The Zotac Cup Master which has a $300,000 prize pool and features eight teams will also feature Optic gaming in the list. The tournament takes place on August 24-26th, 2018. The optic is currently ranked 16th in the world and will be joined by other teams such as Virtus Pro, Kinguin etc.
Here's that surprise announcement for you guys:
Welcome @OpTicGaming to the ZOTAC CUP MASTERS CS:GO Grand Finals 🔫
— ZOTAC CUP (@ZotacCup) July 27, 2018