Next day.
The small town Tristan's car rolled in was only alive thanks to the wild nature park nearby, which attracted foreign tourists like a honey trap. According to the tourist brochure, the park featured actual ruins of Columbian-age buildings which were open for visitors for an extra fee.
As interesting as that was, Tristan didn't have the time for sightseeing.
In the town, he rented one of the many available garages. While his men pretended to be curious tourists and looked out for danger and Cuatro Angulos' people, Tristan was working out on the bombs.
The materials came from the smugglers, and the tools he bought in a hardware store in the town two hours up the road. It was all quiet and convenient. In a place like that, Tristan didn't cause a lot of curiosity.
With 6003 in interfacing skill, crafting some bombs was like a piece of pie. At least on paper.