Aiming and Line of Sight

Despite shells following a ballistic trajectory, aiming is strictly line of sight. That can lead to situations where you cannot place your reticle on a target, because it is hidden by a terrain feature, although the ballistic trajectory of your gun would actually allow you to hit the target. This is particularly pronounced with howitzer guns with high arcing trajectories, for example that on the T82. Due to the automatic correction of your aim it can be quite tricky to shoot the target in such situations, but there are a few considerations that can help you with:

Sniper View has the lowest view point (gun mount), so do not use it if your target is behind an elevation and you have trouble placing your reticle on it.
Arcade View has a higher view point for aiming purposes (Commander's cupola), so you may be able to aim at the target in this mode.

those heavies play like dota noob. 1 by 1 go in to trap area and die.
"oh enemy is there, hold on i'm coming" before he reach, his mate die because there's like 4-6 enemy there waiting.
continue the process~
ya, i know some of the enemy low hp but it's still not worth it.

even thou you cant see the enemy, you can judge by the damage taken or how many shots at your mates. if die less than 5 sec, that's mean very dangerous. they still want to go in and see what's there.

all tier 10 and 9. only me tier 7