This is where the future of the series should lay. I'm so tired of people saying that the game needs you to have the ability to kung fu an alien in the face for there to be balance, when there are so many more creative ways that could be used already shown IN UNIVERSE to get things balanced.
A commander using the Marines cam feeds, hacking surveillance camera's, telling Marines where to position their motion tracker's, smartuns, and sentry guns, looking at schematics to find places to strengthen defenses should be how you "balance" the game.
On the flipside, sense the Alien has to go through all these obstacles give it back its ability to rend Marines to pieces in seconds as well as its placing speed.
The game self balances.
Get rid of this tacky human kung fu shit and use some creativity for f**k sake.