Do you

[Rave35]

Guys Mostly Plot Charts, calculate the AOB for Torp Firing Solutions or do you just go on normal Difficulty

[switch.dota]

I play manual targetting with map contact updates since I dislike spending half a day plotting. I do sometimes play single patrols without contact updates and most of the time I find myself plotting.

[LukeFF]

Guys Mostly Plot Charts, calculate the AOB for Torp Firing Solutions or do you just go on normal Difficulty

There are multitudes of tutorials sticked here. That, and use the search function...