experience

[bovi]

a number sequence that I can't remember the name of

That would be Fibonacci numbers.

[Chris1959]

I thought a kill was a kill regardless, hence the experiance of missle and cavalry shoots up as you slaughter routers.

[bovi]

Missile troops gain it faster because the enemy is less likely to rout, so they get more counting kills. Cavalry just gets such a lot of rout kills that it adds up, and also their unit size is smaller so it takes less kills to gain unit experience.

[Danest]

It's not the quite the same as experience chevrons, but my Casse FM's get command stars by sitting around at home doing nothing. And of course, experience can come from certain buildings too.