From: San Antonio, TX
It's July '43 in my PBEM game. The Chinese have a medium sized army of 1500 AV at Liuchow. The Japanese shock attack and the Chinese lose six months worth of infantry in one turn. Compare the number of Japanese and Chinese squads lost.
Ground combat at Liuchow (74,55)
Japanese Shock attack
Attacking force 43948 troops, 473 guns, 186 vehicles, Assault Value = 1427
Defending force 61982 troops, 507 guns, 0 vehicles, Assault Value = 1515
Japanese adjusted assault: 875
Allied adjusted defense: 177
Japanese assault odds: 4 to 1 (fort level 0)
Japanese forces CAPTURE Liuchow !!!
Defender: disruption(-), experience(-), supply(-)
Attacker: shock(+), disruption(-)
Japanese ground losses:
4512 casualties reported
Squads: 10 destroyed, 266 disabled
Non Combat: 7 destroyed, 190 disabled
Engineers: 0 destroyed, 26 disabled
Vehicles lost 12 (0 destroyed, 12 disabled)
Allied ground losses:
25077 casualties reported
Squads: 1136 destroyed, 0 disabled
Non Combat: 716 destroyed, 12 disabled
Engineers: 121 destroyed, 0 disabled
Guns lost 93 (93 destroyed, 0 disabled)
Units retreated 20
Defeated Allied Units Retreating!
2nd RF Gun Battalion
5th RF Gun Battalion
9th Ind.Hvy.Art. Battalion
63rd Chinese Corps
4th Chinese Corps
25th Chinese Corps
97th Chinese Corps
1st Chinese Cavalry Corps
8th Chinese Corps
94th Chinese Corps
71st Chinese Corps
62nd Chinese Corps
28th New Chinese Division
31st Chinese Corps
39th New Chinese Division
4th Heavy Mortar Regiment
7th Chinese Base Force
4th War Area
3rd Heavy Mortar Regiment
9th Group Army
35th Group Army
57th AT Gun Regiment
49th AA Regiment
Well, for starters, your "1500" AV is fictious. Once your disruption (previous defeat / retreat?), experience and supply (you must really be low here?) is factored in, the real AV is pretty paltry at 177. The IJA is disrupted too, but not shy of supplies and is shock attacking. Retreating troops from either side take disproportional casualties when kicked out a city (or other) hex, particularly against faster troops that can run them down.
To further the narrative: both parties are tired, dirty and beaten down by fighting. It's just he's got the pride of the Wehrmacht with ample supplies and you've got the 1941 Red Army encircled, cut off from supplies and then routed.
The resulting fight sees much of your Chinese diaspora melt into the countryside or become combat ineffective. Units led by weaker officers fragment and cease to function. They disappear. Others flee from the captured city, dropping equipment and material in their wake to speed their departure. Many are cut down as the Japanese shock attack carries over the roads out of Liuchow. Several armored units rush to the fore and cut down or simply crush the Chinese under their treads as they sweep all before them. A dozen Japanese tanks are damaged by running over Chinese equipment left in the roadway or by having their bogey wheels clogged with the slippery innards of their crushed victims.
Well, some poetic license there at the end, but that's what I see. Liuchow got it's backside handed to it. Looks OK to me.