Some of the respected PDF members are referring a term "kill ratio".
In the battlefield some unforeseen, unexpected surprises may occur resulting in unfavorable or partially successful outcomes.
Death of a Muslim soldier should not be used to curse to PA leadership. By doing so, we may be degrading the profession of Pakistani Armed Forces. As a Muslim, one should not forget that death is the ultimate truth.
They laid down their lives in the line of duty, protecting their country, seeking pleasure of Allah subhanahu wa taala and in the end they achieved greatest divine blessing, "shahadet", eternal life till doomsday. Their deaths are their destiny, no one can cause their death except the Will of Allah subhanahu wa taala.
Killing a terrorist IED expert means that the sacrifice of our soldiers was not waisted. Actually the mission achieved a greater success by stopping various IED blasts which might have caused loss of numerous innocents lives.