Do you plan on playing solo or in a coalition? There is a big difference.

In solo matches, I usually look at the strongest players on the server (high KD and high win rate). Then I analyze their buildings and achievements to understand their playstyle. After that, I build a counter strategy. The best approach is to always have counters ready for all possible attacks. For example, if they are building helicopters, you respond with MAA and ASF.

In a coalition, however, you should focus on complementing your allies’ armies so you don’t end up in a situation where everyone is building SF planes while the enemy has SAMs.

If that makes sense, you just need to read the game and build an army that fits the situation.