I think game suffers from the lack of late game range units. And I do not mean bombard units, since those get -17 combat penalty against fighting other units. The last ranged unit is machine gunner. It arrives at start of atomic era but has poor range. Still, useful at that point. Then, at the dawn of information era, it gets severely outclassed by mech. infantry and modern armor, which have 90str, compared to machine gunner range attack of 75str and defense strength of 65. So, they can neither effectively attack such units or defend from them. On plus side, they are better at attacking units then bombers and rocket artillery, due to their -17 combat penalty that reduces their effectiveness to 62 to bombers and 67 to rocker artillery. But those units are better defended due to range, on better defense value (rocket artillery).