nice to come up with such a guide, most basics covered. i think the guide would profit from higlightning or grouping together at start the most important points to follow (which these are, will ofc be debatable)
i would take these:
-meet/don't solo at roundSTART/support mates
-learn how to get to the meets as quick as possible from all spawns (on publics it's mostly exactly ONE meet point each map. bridge dm6/eagle ca3...)
-if you know enemy is low on health (or mate is telling you) dont do "rail at long range" (unless u r very good or easy shot). try using mg/sg/pg/lg.