I interpreted the bars at the top as resists. So it would be prefferable to shoot with Thermal ammo at a Nuimqol bot and not with Seismic one. That way those arrows pointing from one type to the next would be making sense, too (Thelodica shoots Thermal so its the worst enemy for an Numiqol and so on).

Mind you, I am just a noob, too, just saying how i interpreted the sheet.