A stupid question : how to quit the game properly ?

Is there a way of changing the world scale (like in Half life 2 VR) the player models and guns seem too big

Will there be a second part of this cool arcade shooter? I would be very happy!

On episode 10 after killing the big guy on stairs the fps drop suddenly from 60 to 10 wich make totally unplayable since the fps won't back to 60 even if walk back where the fps was better.. i don't remember but on other episodes the fps drop to 40 +- but couple seconds the fps back to normal....

Can you guys add difficulty options to realism mode? By this I mean player health. It gets pretty intense once you get to tier 3 squad missions. The enemy health is fine, but when you're in an area that spawns waves of enemies it gets almost impossible to beat the mission. I realize it's supposed to be difficult, but some times your taking down 100 enemies in a level lol. Plus, more casual players would be able to complete the game in the mode they want to play....