A total newb...dont know where to start learning..

Crappomatic

<div class="IPBDescription">I want guidance...</div>Lemme ask these following questions: WHY CANT I DO THIS CAN I DO THAT OR IF I DO THIS OR THAT DOES THAT OR THIS HAPPEN OR WHAT ABOUT THIS WOULD THAT WORK HOW DO DO THAT IF I DONT DO THIS OR DO I DO THAT FIRST?<!--emo&???--><img src="http://www.natural-selection.org/iB_html/non-cgi/emoticons/confused.gif" border="0" valign="absmiddle" alt='???'><!--endemo-->!!!!<!--emo&???--><img src="http://www.natural-selection.org/iB_html/non-cgi/emoticons/confused.gif" border="0" valign="absmiddle" alt='???'><!--endemo-->?!!!!

umm...sorry lemme be a little more clear:

How do I get new weapons as a Marine?
What commands can I give from COM. station?
What are some various roles as a Marine?
This game seems so complex I dunno where to start my learning of this game, do you?

Moleculor

Ask your commander for new weapons.
You select units and then right click to give an order.
Roles for marines? Shoot stuff. There are no classes. You can weld and build and such, but no classes.
Start anywhere. You'll pick it up.