The main problem I have with compression is that if you halve effective range, then you need to halve rate of fire.
Say a Panther has an effective range vs a Sherman of 1500m. The Sherman has an effective range of 500m. Now, in CM, if there is los, the Sherman will have to traverse 1000m of ground under fire to get into range. Here, the Sherman only has to go half as far, thus taking only half the fire, if rate of fire is left alone.
Makes the tank rush much more viable here than it should be, imho.