Card Challenge: Giving Thanks for Pirates Challenge

In order to prove I'm awesome, I made this post :)

Current Challenge:

Giving Thanks for Pirates Challenge
Unlock the General's Insignia card by reliving the epic tale of the very first Thanksgiving, in which pirates took to the seas and plundered enough booty to buy out the New World."

Requirements: Plunder 50,000 total gold on the "colonel" difficulty setting. – Hint: Pirates are crucial to any seaworthy vessel. Invest heavily in keeping your crew numbers high!

All your golds are belong to us:

In order to get this challenge easily, here's what you should do.

1. When you fight, just kill all of them by melee (Ship-to-Ship attack) and at the same time, play dirty by shooting them. The crew of yours are pretty strong so don't worry about it.
2. Try to max your crew.
3. Repeat.

Note: If you've maxed it, you could upgrade other essential upgrades.
Note: Total gold means the gold you've captured, not from your coffin. Greg is sure kind for the first time :P