added customizable enemy style
fixed known bugs

customizable stage style is delayed, I have to leave to attend to other matters

weapons will now attract fewer enemies

I hope I'm the only one with that crashing problem.

make doors less noisy
reduced enemy vision range

I don't understand why some ARC9 guns can still be heard from the other side of the map even when equipped with a suppressor

added some game tips in the help tab
added several options for adjusting the timer

customizable stage and enemy style is planned, might take a while

attempt to fix the missing texture for the windows

attempt to fix a collision issue