It's hit and miss really. If I start my weekly on all my lv50 characters (three reps) on Tuesday by doing the daily everyday (and no more), I rarely have to do extra warzones on Monday to get the Weeklies done. I both soloqueue and queue with guildies, but that really doesn't affect the outcome. Sometimes you lose ten matches in a row and sometimes you win them. A bad pug will rarely win without communication, and a good pug can easily win without even one word exchanged in the ops chat during the match (a 6-1 Huttball yesterday, not a single word yet good reactions and movement from everyone). Strive for objectives, learn your class (not L2P, mind you
) and learn other classes so you know how to counter them.