Forced an enemy to drop dynamite that killed two people.

This achievement can prove to be very difficult so make sure to be patient whilst working towards it. Furthermore, the achievement is also somewhat missable due to the fact that there are only certain areas in the story where the Solarri will be throwing dynamite at Lara during firefights. Make sure to utilize one of the two instances mentioned below so you do not miss the achievement!

With all this in mind, the earliest you can obtain this achievement is in Shantytown, directly after the cutscene where Lara attempts to climb a ladder to reach Grimm, but is ambushed by a squadron of Solarri soldiers. Here, you will notice that a few of the soldiers that are taking cover behind the boxes on the rooftops ahead begin throwing dynamite at you. There are usually three of them on the lower half of the roof, while a fourth sits at the very top near a satellite relay.

Once you have spotted the dynamite-wielding soldiers, equip your bow! Now, you can usually tell when an enemy is going to throw dynamite as they will pop their head out of cover for an extended period of time and prime the dynamite before tossing it away. You will need to be very quick is shooting an arrow at the solider in order to force him into dropping the stick of explosive. If done correctly, it will fall out of his hands and the explosion should kill both him, and at least one solider nearby on the rooftops.

This method sometimes fails because the enemies a little too spread out. If this happens, you can always die in order to restart your checkpoint, or wait to work on this until a little later on, when you are escaping a burning palace. There is a brief moment during that sequence where after you use a zipline to cross a gap in the rooftop, two soldiers on a roof opposite of you will attack. One of these soldiers has a stick of dynamite and since the other is so close to him, its nearly impossible to miss the achievement here.