Basically a recalc of this feat.
I went into Source Film Maker and took two scout models. One for him standing, and one in a pose similar to the one in Meet the Medic.
Scout Standing = 299 px
Scout Explosion Pose = 166 px
According to this, Scout is 70 in, or 177.8 cm
177.8/299 = 0.59464882943 cm per pixel
166 x 0.59464882943 = 98.7117056854 cm for Scout’s explosion pose height
Now onto the actual explosion itself:
Scout = 12 px
Scout explosion pose height = 98.7117056854 cm
98.7117056854/12 = 8.22597547378 cm per pixel
Explosion diameter = 108 px
108/2 = 54
54 x 8.22597547378 = 444.202675584 cm explosion radius
4.442026755840000618 meters explosion radius
The formula for ground explosions is W = R^3*((27136*P+8649)^(1/2)/13568-93/13568)^2. Pressure is 1.37895 bars. Plug all the numbers in, and we get this:
W = 4.442026755840000618^3*((27136*1.37895+8649)^(1/2)/13568-93/13568)^2 =
0.0070441569784456613398938415550722094823590122267093317146228286 tons
Rounded that is 0.007 tons, or Small Building level