Played a fair amount of games during confinement and quite often my opponents had poor ratios of land units for the big battles.
Ive played more with artillery and the system is not that different from what ive post 3 years ago.
(assuming tanks cost 5$)
1- do not lose art or tanks in the first 2 rounds
2- have as less as possible infantry alive after the first 2 rounds.
3- between 1 & 2 give rule 1 the priority***.
4- number of artillery should be as close as possible of the number of infantry that survive round 1, aim for more rather than less. (having not enough art hurt more than having too much of them wich implies less tanks***)
5- rest are tanks if they cost 5$.
ex
60inf to kill. you estimate they are going to make 20 hits on R1 (you will make at least 15) so hopefully they will make 35 hits or less in the first 2 rounds. So you need around 35i and 15a (35-20)
cost of total units 211$
35 inf+14 art+10 tanks(211$) = above 52% & close to 80% for LL.
34i + 11a + 13t = above 48.5% and slightly under 46% for LL (not enough art)
33i + 13a + 12t = slighty under 51% and 74% for LL.
36i + 12a + 11t = 50.5% and under 56% for LL
36i + 17a + 7t = 54.5% & 90.7% for LL
36i + 22a +3t = 55.5% and 85% for LL
210$
34i+12a+12t = 48% and under 39% for LL
35i+15a+9t = 51% and under 71% for LL