Is it possible to complete this quest without the enmity of the BS (Fallout 4)

Hello everyone, today I was faced with a not very good situation ..
In general, I want to go through the game behind the subway, I go through the "underground and undercover" quest where it is necessary to free the synths, in general there the quest is indicated to carry out the instructions of the father, and wait until the synth to which we gave the weapon with us will contact ... Well, while fulfilling my father's instructions, I came across the quest "Mass Fusion" where you need to steal an object that both parties are interested in (Institute and BS) ..
As an option, I was instructed to go to steal it AWOL or warn BS .. If I go AWOL then BS will be my enemies, if I warn the Institute will be my enemies, that the quest for the underground "underground and under cover" immediately fails, and I don't want to spoil relations with the BS ...
Is it possible to go through this quest differently, without the masses of fusion, I will add another unwanted enemy!