Joanne Schermerhorn said:
when signing on says base attack and a vedeo learn base defence but vedeo doesent work when click on aero
To see what works for base defense, & what doesn't, watch base hits, including your own via replay. I've personally found replay accuate enough to make adjustments where needed.
Your base works hand in hand with your guard. You can't rely on just one or the other to defend your base, guard placement is very important.
I'd recommend finding a good alliance that can teach you the ropes, BEGNR is probably your best 1st port of call.