It's very good that you have started studying razz strategy, because this is where you will double and triple up in the early rounds.
My basic strategy in these large tournaments is to play only very premium hands in the first round of hold'em and omaha, as you can't see any of what your opponent has and the chances that they will have random rags is relatively high.
Once you get to razz you should play any hand with three cards 8 or lower. Also play hands where all of your hole cards are lower than any up cards of your live (not sitting out) opponents. Much of the time people will call you with a queen showing. I've been in a situation where I was raised with someone holding A2KJ, where I had A379. Much of the time you will be a huge favorite to win in these situations, and remember not to get too attached to that A23 when a king comes on 4th street
As far as the other games go, play the low aggressively in early Stud H/L rounds, as you can win half of pots with 5 players in them and still make big money. Often you will even make a straight and take down the whole pot. I generally stay out of Stud, but that's never been my best game anyway so if you are good at it then by all means go ahead.
After the first round, Texas
Hold'em and Omaha are pretty straightforward, loosen up as the table allows but save your big moves for the games where you have some idea of what your opponent holds. It's a lot harder to steal blinds in Limit hold'em games (obviously) so stick to good or premium hands unless the table is playing supertight close to the bubble.
Anyway, that's my strategy for HORSE, I pretty much make the top 5% every time because the field is so fishy; with some practice anybody could do the same. I'm a strong supporter of razz because you pretty much know where you stand even against complete unknowns, so my opinion is based towards the stud games. It seems to work for me though, good luck in your donkaments