Imo there is no need for the horizontal, go play with it for a bit, it is very accurate. (having a covert will reveal to u on command map where the enemy is
almost like seeing through walls, okok:| )
Mortars Kick butt.
Go into an empty server, pull out and set up the morter(preferably on level clear ground, next to a command post for ammo), use your map toggle so the map stays out, look at your icon on the map (you are in a fireteam so it has a white circle, right), the icon has a arrow also when u fire thats what direction the round will go.
i.e. point the arrow on your head from the command map in the direction ya want it to go.
This is your HORIZONTAL adjustment
(you maybe lucky enough to have a covert disclosing the enemy’s location on the map or a fieldop throwing/calling airstikes so you will be able to see where to the fieldop called the strike)
For VERTICAL , you will have to experiment, it is very accurate.
open map, set the arrow on your map/compass head to a target direction. On the Vertical scale set it to 90 and fire. repeat above steps but set to 88. repeat above steps but set to 85, notice location on map and your feet where it landed, set to 80, 70, 60, 50,40, checking map after/during each round lands. In a while you will be able to judge from a few shots to the “exact” location u want.