Flying Lizards got you down? No worries! If He flies next to a wall hit Him with a slow shot. It should make Drogoz fall due to the drop in speed. Try to bait out a Salvo and Weightless out of the way. Making Him waste an ability and need to reload.
Khan can prevent Fernando from protecting his allies with Commander's Grab. It will cancel his shield and displace Fernando behind Khan, meaning he must waste his Charge ability if he wants to be back in the fight.
Frontliners Tip
Use your "CC reduction" card + "Resilience" to deny point pressure from "Grumpy Bomb".
BK feels relatively safe you while stunned. "Jumping out" of stun earlier, works like surprise effect & confuses him.
Save your Fireball when Seris is healing her tank. Combining that with Cauterize on your flamethrower, your tank will get healed less, so he will require more healing attention, as such, reducing the survivability of their tank and other teammates.