so yeah im completely new to the whole warhammer 40k scene but im already starting out with my new army. im going to go pick up a SM Tactical Squad in a couple days and i had a couple questions about painting them. 1-do they need to be full assembled to paint or is it better to go piece by piece and then assemble. 2-i dont like the lines showing so should i also pick up some green putty. and just throw in some tips you can give me, any would be nice, thanks!