Idea is good, execution is average.
The worst side is the terrain. Totally no Stalingrad climate. You should make it similiar in style to the terrain from NotD, NOTD Aftermatch, Undead Assault, etc. Rubble, building ruins, etc. The terrain is just ugly, it scares me off.
Shooting- even sniper shots shouldn't be homing. They should have insane projectile speed, but NOT homing. Rifle shots should be able to be dodged. Artillery shots- look great, fly long, but the explosion is much smaller than AoE. Either increase it or add some shrapnel effects.
What I like, are the units moving in squads, with commanders. It's not another fixed lanes shit, it's a battle, it has the battlefield climate.
To sum up- this map has potential, but currently- it's average. If I rated AtD 10, I would have to rate this 3 or 4.