I have some ideas:
Aliens
1.Adv. granger - i think it's spit shot should be like a mobile trapper.
why would you need this? build a trapper or don't battlegranger
2.Tyrant - Remove the charging option.
the charge is being upgraded to become useful in 1.2. you may not have played the tjw yet but it's very, very awesome
3.Adv. tyrant - Give it the ability of making a earthquake. First just creates a earthquake line but in the end explodes.
too powerful/not much incentive to use an evo for it depending on how it's implemented. plus the explosion would be a little unnecicary
Alien buildables
1.None
Humans
1.battlesuit - Give it a radar with better range then helmets radar.
has been discussed before. would make the battlesuit unbalanced, as the extra armor is intentionally a trade off for the radar
2.sprint - I think humans should have increased max speed while sprinting.
unneeded. They're fast enough as it is, and the only time you'd need it is if you're being chased by a high level alien, in which case you have yourself to blame
Human guns
1.Chaingun - Give it a bit more accuracy. It is impossible to shoot a basilisk or marauder.
chaingun+bsuit stops this
2.proximity mine - You would use it like grenade, except it waits until an alien walks over it, then explodes. Aliens could use wallwalk to dodge it, or maybe just jumping. It shouldn't explode when humans walk over it. But it is easy to accidentally do a TK, if an alien runs over the mine with a human nearby.it wouldn't make anything care. dretches don't give enough creds to make this matter and a goon/tyrant would just regen back
3.Lucifier cannon - Create a new skin, showing the heat level using a visible meter, instead of just the sound.
a visible meter would be hard to code. I'd suggest implementing it in the HUD, like a tyrant charge meter
Human buildables
1.chaingun turret - upgraded machinegun turret, existing regular turrets would be upgraded using must a button labeled ''upgrade structure''. Upgraded turrets should have better armor and do more damage when firing.
this would make human bases nearly impossible to attack. tyrants are already pretty damaged by turrets
These are my ideas.
EDIT: Thanks to the guy who fixed all the grammar.
EDIT: Fixed some things by my own.