Bump up speed to first cap, bump up agility to first cap, bump up vision to first cap. After these are done, you can start specializing your guy. Do you want a cover FS... bump up speed and agility. Do you want a fun stopping FS... bump up vision and agility... do you want a FS that will be strictly cover and have weaker attributes elsewhere... bump up all three to 68. <-- that is sarcasm as this really will do no good overall.
If you bump up all three to 60, than let your equipment specialize for you... i.e. all speed, all agility, all vision or a combo of them to have a "well rounded" guy.
Don't worry about jumping although others will come on here and say you should get jumping up there.. really little effect.
Stamina is important if you want to stay on the field but you can train that or take a level or two and bump it up as well.
Buy a piece of crap advanced equipment now to hold onto your bonus tokens because you won't find anything worth keeping at level 8.
Strength can be important but that goes with the run stopping aspect more so than the cover aspect.