1. About the Stealth stuff, in my save it dont matter if my weapons have a sound suppressor or not, one shot with a sound suppressor and the enmey is alerted. Also they know exactly my position even when im covered behind bushes and trees.

2. The Reinforcement system for the enemy is kinda broken, 1 minute after CSAT is alerted, the reinforcement suddenly appear random near u. so that means even if u rushed down a road and that was empty, the enemy can appear there and shoot u from the back.