Ideas to make the Engineer more interesting
The Engineer is too strong on his own and his abilities allow him to spam projectiles and give him a free speedboost.He also is too easy too play and does not benefit too much from helping his team.I think the Engineer needs to be rewarded more for helping his teammates and should be less successful at his own.
The Heavy Helper
It‘s too easy for the Engineer to put it down anywhere and use it's Infinite ammo and ROF increase for himself.The Heavy Helper doesn‘t do a lot on it‘s own.It might as well not even shoot to begin with.
I think the Heavy Helper needs a Buildup time so people can‘t just put it down in front of a plant and expect it to buff the user instantly.I think the Buildup time needs to be around 5 seconds long and builds twice as fast if the the Engineer is standing next to it.The Turrets health will increase from 1 to max health during it‘s Buildup time and will only begin shooting and giving buffs to everyone next to it if it’s finished building.I would also propose a buff in it‘s damage and accuracy so it will actually be somewhat threatening to the opposing team.However I would also decrease it‘s max health to be easier to destroy so that the Engineer can‘t just use it to vanquish plants and replace it if it has been damaged too much.The time it takes to place another Turret currently takes too long if has not been damaged.The time after moving the Heavy Helper should increase the more it was damaged.
no damage taken=5 seconds
half health=10 seconds
destroyed=15 seconds
The Double Time
The Double Time effect doesn‘t last very long and isn‘t very effictive outside of modes with fixed spawns (Gnome bomb,Turf Takeover).So People use it to easily get out of sticky situation for free whenever they wanted to.I would would also add a Buildup timer to it (works how I explained in the Heavy Helper segment).Giving the Engineer two would help with problems like crosspaths in some places in maps and increasing the length of the effect would make them more useful for the team. Decreasing the time it takes to build another one or placing it somewhere else would help the Engineer to keep up with the spawns of the team.The Engineer himself does not know if his Speed Pad has been destroyed.So displaying it somewhere or giving the player a small message (like with the Heavy Helper if it has been destroyed) would make it easier to know.
The Bullhorn Swarm
I think the Bullhorn Swarm is ok how it currently is but there is still two things I wanted to point out.If you hit a plant with the main bullhorn the stun would be instantly put on the enemy and no extra bullhorns will come out (stun will be as long as if all bullhorns had hit the plant, maybe even add a extra 0,5 seconds on top for hitting the plant directly).And let the bullhorns stay in place until they have been shot (also make it easier to shot them)
or if the Engineer placed down another one.
Primary
The primary of the Engineer is too easy to use.Add smaller hitradius, make its splashradius bigger and after the projectile hits the ground it can no longer hit a critical hit.