Fire Emblem is a difficult series, I don't know if you guys have heard

[Words Of Wisdom]

Naraku_Diabolos said:

I'm still on the third chapter on Radiant Dawn...I'm playing on normal mode and no matter which path I take, my units keep getting killed. I then bought the strategy guide to help me and I followed what the book says, but my units keep getting killed  

1)  Restart
2)  Take Sothe's weapons away (literally give his weapons to someone else)
3)  Let everyone else get kills