Read somewhere so take it with a pinch of salt coz im just lvl 3.

Offside trap: Use when playing Normal/defensive/hard defensive and are pressing in own half.

Counter attack: When playing defensive formations and tactics. Plus when you and opponent play attacking football and you suspect with high propability that he is pressing whole pitch

"Some people think football is a matter of life and death. I assure you, it's much more serious than that" - Bill Shankly