My units keep getting disrupted

[Admiral Hood]

I am playing East Prussia '14 by John Tiller as the Russians and when I am attacking, my units are getting slaughtered by the enemy Machine Guns that seem to be immune for my artillery fire. When I am in a hex adjace to the enemy with 3 or 2 infantry units against the enemy's one and his one MG I am losing about 100-200 men in one turn and have all my units disrupted, unable to assault and utuilize their superiority. Soon it seems that I am unable to defeat a weaker foe because he has MGs.

Could your provide me with some tips on how to attack the enemy?

Let me tell you how I'm doing it now:

1. I am trying to disrupt him with my artillery and MGs - I am concentrating on the points of my main attack, though also devoting some minor fire to the other areas to confuse my opponent. This works rather well, and quite some enemy units are disrupted.
2. I am moving my infantry closer to the enemy, 2 or 3 units in one hex just prior to the assault, so no more than 2 units in one hex when closing in under artillery and MG fire - still, I am losing about 100 men in each hex. I am trying to keep my brigade HQ 2 hexes or one hex away.
3. I am assaulting disrupted enemy units with 2-3 of my own units if possible - which is usually not possible as they are all disrupted.
4. Even if I am breaking through in one place, my men are too disrupted to prevent enemy's regrouping and cannot really use the breakthrough to totally disrupt enemy forces. 
5. After my breakthrough in two hexes I have 3 disrupted units in each of them, while the enemy has prety weak units - retreated units - one per each hex, and artillery in one of those. During the German turn it has fired three times - killing 60 Russian each time, and when I tried to shoot back during my turn, it was killing 60 per turn again while I did almost nothing.

To clarify - I am playing the main campaign and the battle of Gumbinnen was half-hearted and I've retreated after high losses and enemy retreated too. Now I am attacking his forces near Gumbinnen and I Reservekorps at the same position it has occupied in the beginning. I am doing poorly in both, particularly where the enemy MGs and artillery are as I can't even get close without my men being disrupted and they don't seem to be recovering from disruption either.

What am I doing wrong?


PS - does the amount of troops in one hex affect moving speed? Many of my columns don't move faster than 2 hexes in one turn.


Also - why in attack when assault chances are 3700 to about 700 I am losing 48 men while the enemy is losing 29 men and 3 guns? He only has artillery, MGs and cavalry unit in that hex. Hex is clear with no advantages. I am attacking with 2 regular Russian units. What gives?