Perhaps you could read of Praga, Vinegar Hill, Seringapatam, Jamaican Maroons atrocities for comparison.
Whatever the nation, treatment of rebels was the same.
Yes, rebellion could be put down harshly. Reading of Vinegar Hill, the battle turned into a bloody rout, the bulk of casualties coming from artillery fire, while in the aftermath atrocities were reported against women and wounded (sometimes explained part, although not justified, as reprisals by local levies for earlier rebel atrocities). They did not result from command decision or goverment policy. No atrocities that I can find reported in the Maroon War of 1795-96 with government forces suffering higher casualties than the Maroons. There was however shameful reneging of the treaty terms. The capture of Seringapatam 1799 which culminated a fierce assault did not produce any atrocities tht I can find. It did not in any case involve rebellion. As for Praga, perhaps you could enlighten me.