This is an abbreviated list of the unit damage changes from Advance Wars: Dual Strike to Advance Wars: Days of Ruin. It is particularly helpful to see how the roles of units have changed between the two games.
| Attacking Unit | Defending Unit | Damage Change | AW3 Damage | AW4 Damage |
|---|---|---|---|---|
 Anti-Air |  Tank | -10 | 25% | 15% |
| Anti-Air |  AW3 Mid Tank/AW4 War Tank | -5 | 10% | 5% |
| Anti-Air |  Bomber | -5 | 75% | 70% |
| Anti-Air |  Fighter | +5 | 65% | 70% |
| Anti-Air |  Transport Copter | +15 | 105% | 120% |
 Battle Copter |  Anti-Air | -15 | 25% | 10% |
| Battle Copter |  Mech | -10 | 75% | 65% |
| Battle Copter |  Missiles | -10 | 65% | 55% |
| Battle Copter | Transport Copter | -10 | 95% | 85% |
| Battle Copter | AW3 Mid Tank/AW4 War Tank | +10 | 25% | 35% |
| Battle Copter |  Rockets | +10 | 65% | 75% |
| Battle Copter |  APC/Rig | +10 | 60% | 70% |
| Battle Copter | Tank | +15 | 55% | 70% |
| Battle Copter |  Recon | +20 | 55% | 75% |
 Bomber | AW3 Mid Tank/AW4 War Tank | -20 | 95% | 75% |
| Bomber | Anti-Air | -10 | 95% | 85% |
| Bomber | Missiles | -10 | 105% | 95% |
| Bomber |  Infantry | +5 | 110% | 115% |
 Infantry |  Artillery | -5 | 15% | 10% |
| Infantry | Rockets | -5 | 25% | 20% |
| Infantry | Missiles | -5 | 25% | 20% |
| Infantry | Anti-Air | -2 | 5% | 3% |
| Infantry |  Battle Copter | +1 | 7% | 8% |
 Mech | Anti-Air | -10 | 65% | 55% |
| Mech | Battle Copter | +3 | 9% | 12% |
 Missiles | Battle Copter | +5 | 115% | 120% |
| Missiles | Transport Copter | +5 | 115% | 120% |
 Recon | Tank | +2 | 6% | 8% |
| Recon | Anti-Air | +4 | 4% | 8% |
| Recon | Infantry | +5 | 70% | 75% |
| Recon | Battle Copter | +8 | 10% | 18% |
| Recon | Missiles | +27 | 28% | 55% |
 Rockets | Anti-Air | -10 | 85% | 75% |
| Rockets | Tank | -10 | 80% | 70% |
| Rockets | AW3 Mid Tank/AW4 War Tank | -10 | 55% | 45% |
| Rockets | Missiles | -5 | 90% | 85% |
 Tank | AW3 Mid Tank/AW4 War Tank | +5 | 15% | 20% |
| Tank | Battle Copter | +8 | 10% | 18% |
| Tank | Anti-Air | +10 | 65% | 75% |
 AW3 Mid Tank/AW4 War Tank | Battle Copter | +23 | 12% | 35% |