How long should it take for me to build an army to attack with and what kind of units should I be making and what size count?
This is not a question that can receive an answer. Each nations has it own times and army composition varies according to the map you are playing into and which other nations you are facing. As the game is in this current "meta" (not that I've hopes for it to change in the future) the safer and lamer way to win is to rush muskets and then hussars or 18c dragoons as soon as they are available. End