Context: Unlike in the vanilla games where the animation speed of projectile hit splashes and explosions was tied to the Fire Speed buttons, in OpenXcom the splash/explosion animations stay the same regardless of fire speed slider's position, which annoyed me since I found the default animation speed too slow. When I asked about it, Warboy provided a solution: add explosionSpeed: X (where x is -5 to 5) to every weapon clip (or weapon itself in case Lasers) in the items.rul, and it worked.
Now, coming back from hiatus (last time I played was before the new mod system) for my favorite TFTD, I tried to do the same but it doesn't work, the game gives an error at launch: (yaml-cpp: error at line x, column y: illegal tab when looking for indentation)
Am I doing something wrong or was the explosionSpeed function removed?