Great response. I, personally, was freaked out as a new player (FF? TK? GOON? FEEDING? CAMPING?).
--FF=Friendly Fire (Your machinegun harms your team-mates too)
--TK=Team Kill (As above, killing a team member)
--GOON=Dragoon (A nasty alien beast!)
--FEEDING=Getting killed as a dretch/machinegunner, over & over again (a dretch can't do much to a tesla/battlesuit-wearing human) If in doubt, ask (press 'y' then the your message, to ask team-mates)
--CAMPING=Not going past your, structural (tubes/turrets...), base defence. I'm still not clear on this issue, isn't an s1 human better off firing a few shots from behind his turrets than feeding by attacking his opponents, time evolved, goon?
As with crossing the road, "Look & listen" and if you can, cross the road with an adult.
(Don't accept candy from them though)
From a fellow 'noob', Watch, Listen, ASK! The comunity (besides a few "vets") is very friendly.
Thanks to all patient, welcoming "Trem-endous" players!