I have all three of the mod achievements, seemed easy enough to get, download and play a game with a mod. Rating a mod took awhile to figure out, but if I recall it was a thumbs-up type vote only, saying recommend or something. The 357 ships, I just kept playing a map I had won with a massive navy and just declared on everyone and sank ships until it unlocked. But, it was boring. I have unlocked like 157 so far, and when I go to set up a game, I take unlocked ones into account, such as what leader, and what feat to unlock. I'm 12 wins away from the Shafenator one, so that one's been tough. Thinking of grinding out a dozen quick duels to get it finally.