Titanfall

Very Easy achievement to get as minions count towards the deaths in this achievement, so it is minion hunting we go lol. If you load up with hand grenades and throw one at the minions and instantly start wall running you will add progress and earn yourself

As pogomax said, minions count for this achievement. A very easy way to do this would be to play the new Frontier Defense gametype. The exploding spectres did not count for me for this achievement, so killing grunts and normal spectres will get you the achievement fastest.

Most, if not all the DLC achievements that do not involve killing pilots can be done in Frontier Defense quite easily.

This is simple to do solo and immediately in a quick fashion.

Frontier Defence
Custom
Choose Run off as your map.

You must unlock Custom by playing 3 games. And you can do this solo without waiting for the map to rotate.

Simply kill enemies (they don't have to be pilots for this one).

TIPS for solo success.

Don't worry about protecting the harvestor. YOU WILL NOT FINISH THIS ALONE
When you land, stay there until the enemies get into position. Then jump down BEHIND you and move through the building. They should all be lined up shooting at the harvestor when you look through the door way. Headshots quick and simple. Do your best to stay alive and a Titan will come quickly (especially if you do head shots)

QUickly use the titan and run over the enemies while staying on top platform. You will fail and get 2 more tries. Overall, you can get between 70-100 enemies kills in one match.

This will also work towards:

This just a small addition to the other great solutions. I would recommend using the smart pistol with the extended magazine.

The lock-on is faster on AI enemies so you can shoot without having to aim directly.