Frag bombs
For 180 munis, I expect more damage to tanks, for example the Soviet bombing run is very damaging to all units.
Frag bombs are really good are you kidding me? The soviet bombing run doesn't stun tanks when it hits them. It does more damage because its concentrated in a much smaller radius.
Unless you're talking about the IL2 AT strafe, which does stun tanks but does less damage than the frag bombs.
Compare with I&R pathfinder arty, railway is a joke. Pathfinder arty comes down faster, its shells land in quicker succession, and the scatter is much tighter and the shells are almost as impactful as the railway arty shells, for only 140 munis.
Why would you compare artillery that needs a specific unit in range to artillery you can call in anywhere you have vision?
How do you not get bored of only caring about Ostheer? I don't understand