Ok i'm new but i have some point..
Well first of all i wanna say that i'm quite new to the game.. i played a few games (about 50) and i think marines are way more difficult to play than aliens...
In all these games i've done i played both marines and aliens and i have NEVER seen a marine team winning...
I know that marine depend very much from the commander, but being a commander is so hard that there is just a few people who can do it well..
In particular i find that medpacks, armor and weapons system has to be changed...
It is way too annoying that people always ask for this stuff, the commander has many important things to do and these simple functions could be easily automatic
(for example: if a commander gives you a hmg you stay with the hmg even if you die and your respawn cost is higher)
Now every time a newbye like me dies the commander has to give him a new weapon and this makes his job a lot hard so that after a while he'd be sick of giving him items that he loses so early with the result that for the new player it is impossible to kill the big aliens and the turrets
Sorry for my bad english.. c ya people