A little old, but beings how often I'm around nowadays I'd figure I'd give a few things. (and also remind that its tips, not the e-peen thread)
The best advice for a new regiment - Set and stick to a set of standards the group should follow and believe in. Always treat people like people. And only ever give discipline when your expectations of those set "standards" has been broken, only then will someone know they've done wrong. Always be open minded and see EVERYONE'S point of view parallel to your own.
The best advice for a new Leader - Always put the group and the betterment of the group above yourself. "Nothing" is impossible, there is always a way to approach anything. Don't become someone you've disliked, or someone would dislike. "Although you'll never reach perfection, always persist to try!"
Thats what I think of, off the top of my head - if anyone has any questions, would like to chat, or is looking for advice, feel free to look me up on steam and add me!