Army of Two

You can get this achievement in all the modes: multi player mode or single player mode (with a co-op or AI partner). You will need to take down and kill 25 heavy armored enemies just like the achievement said.

You will get this achievement in one play-through, unless your partner takes most of the kills.

I know the game states the best way to take down a heavy is with using the aggro system, and while that is defiantly one way of taking them out, I find it much easier knock them down and then kill them. If your having issues taking out the heavies and need some help:

- Use grenades to knock them down.

- The maxed out Dao-X knocks down heavy armored guards at mid to close range.

- Sniping them will cause them to either get knocked down or take damage.

- Using a rocket launcher will do a good job :)

Apparently there's a dude in heavy armor on the hovercraft I Afghanistan, so if you are hovercraft boosting for your billion bones, you might accidentally get this like I did.

The training area is ripe for picking off surprisingly easy achievements, and this is no exception. You can get a handful of achievements by grinding the area at the beginning of the game. Here's how:

Start a new campaign (or choose Somalia from the Missions menu and play as Salem) and turn the difficulty to Recruit. Now go through Aggro Training. There's a Heavy halfway through that's incredibly easy to beat with all the surroundings on easy. Takes me about two minutes to get to him each time, so rinse and repeat to fill your 25 kill quota.

A few other achievements you can get with this include:



Very easy to get with your standard assault rifle. You'll get it while playing normally, but you can also get it by replaying this mission.



They teach you how to do this, and all the enemies are incredibly weak. Rinse and repeat to get this easily as well. All kills rack up on your weapon, too.



At the first cover spot, you can just keep firing and get this. Probably the easiest achievement here.



When you're asked to swap your primary with Rios, switch to your secondary. He'll give you a Scorpion in return, which you can use to rack up SMG kills.