Believe it or not, if you're good at tracking, Jenos can get good poke damage on Drogoz if he's in the air. Strategize with your team to see if you can find a way to poke him out of the air and someone on the ground can finish him off.
Jenos has a very good DPS. If at any point you can catch Ruckus while he is distracted with someone else and focus him down, not even Emitter will save him before you've gotten him dead or low enough to be killed by someone else on your team.
Lex may seem extremely weak against Tyra, but when you have no mobility against a flanker there are plenty of situations where you could be caught off guard. When countering Tyra, Combat Slide (and the Heroism legendary) is the way to go.