Destiny tips and mysteries

HELLO, yes i have not benn posting anything for a while any who im not doing this post for this reason im doing it to help fellow members of the clan and beyond or so to speak. 1. Whenever a Knight pulls up his shield and regens health, throw a grenade at it eg a warlock's void grenade or a titans pulse grenade would be very help full in this situation 2. When you find a serviator with a fallen squad, kill it first they deploy a weak shield to other falllen units at a sertain range 3. Now this one is about the new trailer featuring a dragon flying across the moon for a short period of time, could this be a enemy to kill or could it be freindly we may not even know but there are a few weapons featuring the word "dragon" in there names they could be random drops or quest items who knows *apart from bungie* we will just have to wait 4. The cryptarch found in the tower *I only typed this down for people who didnt play the beta* will give you engrams and rewards for leveling up his rank, he will give you through the post master this was quite anyoying. That seals this up for now I will hopefully do this next and when the game comes out I will not do this again.