You sould build teamwork, chat with people on your team, and ask If you think are newbies. If some people admit his newbie, I think will admit a few suggestions. You can also repeat suggestions as you see bad ideas. If yours suggestions seems usefull and good, some people will follow for good.
Good in theory but problem is, way to many people won't listen.
Just last night I played a game on Nexus 6 on AKKA as human.
I started getting turrets over to the corridor, getting ready to move base and nicelly tuck away the reactor when this dude decons the reactor and places it smack in the corner of the corridor. Any moron can snipe it there, but i figured "too late now, we'll go with it" I'm not the type that fights about badly placed reactor.
So I make all the goodies such as armory, med right next to it, etc and secure the inside of the base with turrets so people dont get eaten by maras when buying or healing. Few minutes later he decons ALL the turrets and starts placing them at the entrance with the door. only one turret left on the other entrance, where the reactor now chills out.
Guess what happened? Maras didnt even look at the turrets. Jumped over them and right into the undefended base...TA DA, game over.
Humans expect the turrets and teslas to make the kills for them, rather then defend the base. They try to place turrets so far away from the reactor and armory and sit on them.
Most good aliens wont even bother with those turrest since they really are nothing but lost points for the hummies.
Another game same night, we finaly reached s3 around the same time aliens did, so tyrants started rushing. The base was at a great position so tyrants didnt have it good at all and layed off. Meanwhile, hummies start defending the base with lucy's, flamers and nades (as ussual).
Few adv maras jump into base and let the humans do the dirty work for them, destroying everything them selves but the reactor (tyrants took that one)
Funniest this was the discussion about FF afterwards.
OMGZ, FF ONZ??? WTF YO, LYARZ, CHEATRZ WTF, etc
When I suggested defending base with painsaw only i got a nice STFU NOOB. Hmm