So i've been thinking on a way for improved capacity for nuclear weapons. My thought is that nukes should have two more targets that they can hit. They should be able to target military only, no infra damage. People might say that doesn't make sense, you aren't going to have your military at home when at war. So? Desperate nations would nuke themselves.
I propose 2/3rds of soldiers would be killed, 1/2 of tanks, and 1/7th of planes. The planes make sense because nuclear weapons create one hell of a shock wave, easy enough to rip planes out of the sky.
Second, nukes that can target resources. It makes sense, most nations/people/whatever have centralization as important parts of creation of raw materials and refined materials. So a nuclear attack that destroys x % of all resources, or a higher number for one, would be useful and fun.
Projects. Multiple Warhead Project (i'm bad with names). This would be a project that allows for someone to fire 2 nuclear weapons at once, targeting two different cities. And yes, these are actual things in real life (Russia is scary). This could also allow for someone to buy two nukes each day.
Also, a fun thing would be there would be a 1 in 100 chance a nuke kills your leader, and after that you can't do anything for a day (basically you get no MAPs, or get money/resources each update)