>>531629982
1. Take a reference. Movies, older games, anything.
2. Copy and mix their color pattern.
3. Make everything have feedback when you do anything to it. Example, bullet shell drops with sfxs, sunlight blinds the player a bit, explosion in a room makes the room a bit misty/foggy from the smoke, ect

And THE MOST IMPORTANT PART
4. TONE DOWN your saturation. Soulful games have specific color tones. Making it brighter wont make it better

Here for example, above is BF 1 and below is BF 5. Which of these two image look like it happen during a chaotic battle?