Secondly, there is an imbalance between

the strengths and weaknesses of the attacking and defending sides
A single "blackout" mechanism that changes the lighting situation can give the defending side a significant advantage. Firstly, the attacking team is in motion and the torch will reveal their position, secondly, the defending team also has a night vision camera, which will allow them to switch between attacking and defending, but this will have a big impact on the overall game