Falcon Trial (Tom Clancy's The Division)
Who has already passed, how do you)? Feels like)faq_spilberg
If you tried this tactic, you wouldn't write it here. I will note at least a couple of points: according to your tactics, only two will deal normal damage and have protection. And the other two? Then most of the bots will not go into the hole at all - they will have to go out not only to plant the bomb. And on the 15th wave, the mobs are generally endless. Without good health, even a bomb will not work there. And cd ulti does not depend on Electronics or Skill Power at all.
In short, without good gear there and "Electronic" will not help, although a good "Electronic" is needed there, or even two. For there you need not so much buffs, as you wrote, as the treatment of allies and the control of the enemy.