It's been discussed before, but i'd like a separate attack button for the alien's tail lash, it's stupid it can only be used on the sealing + it works only at a range of 3 meters and at 2 meters distance the heavy attack automatically takes over for that attack type.
Also give the tail lash a descend stun, e.g: 0.3 secs, just enough to get behind them, because we can't stun or knock down Preds (but we can on marines? the Preds already have superior melee, where's the balance in that?), which is very annoying since all their one-shot-kill-weapons can still be used in close combat, especially the disc is annoying (if you even get past the disc at long range).
I think this is a subtle change which helps the aliens in melee, but doesn't affect the game too much and doesn't make the Alien over powered.
A small and easy change, but genious.