Ironsight is Pay To Win.

The rigged matchmaking is just a copy of what Activision does with Call Of Duty.

https://www.eurogamer.net/articles/2017-10-18-activision-patented-method-of-tuning-matchmaking-to-boost-microtransactions

"For instance, the microtransaction engine may match a more expert/marquee player with a junior player to encourage the junior player to make game-related purchases of items possessed/used by the marquee player," the patent reads. "A junior player may wish to emulate the marquee player by obtaining weapons or other items used by the marquee player.

"In a particular example, the junior player may wish to become an expert sniper in a game (e.g., as determined from the player profile). The microtransaction engine may match the junior player with a player that is a highly skilled sniper in the game. In this manner, the junior player may be encouraged to make game-related purchases such as a rifle or other item used by the marquee player."