Phoenix, the simple plan would be to do what the actual Animorphs did for a bit, except capture and keep Dracons. Dracons are far superior to human weaponry, as well as creating confusion. As a human, you could be among the YPM, creating in-circle strife (Morph Chapman, and do some damage as him, etc). As a Hork-Bajir, you could be either be among the free ones, or the YPM, or, if possible, morph Andalite and do damage that way.
I don't think I'll name a team because I've only been here a couple/few months, and haven't gotten to know everyone well, as well as reasons Phoenix already mentioned.
Also...
takes his 30-06 & hands him an M-14 and a Knight's 6mm Carbine. You need something semi-auto for under 600 yards & a personal defense weapon.
The most produced 30-06 was the M1 Garand, semi auto. Maybe you meant something clip fed or that has a larger magazine? Still, guns like that in .30-06 exist.
Honestly, if I were using guns and in that position, I would get something for extreme ranges, such as a Barret, and take out vital targets from a distance. If I was going for a personal defense weapon, I wouldn't want anything scoped, because it's useless if they're up very close or come up behind you. For places where the actual Animorphs were fighting (buildings, etc), I'd go as a Silverback with a 10ga that has an extended magazine.
Still, like I said above, I'd probably hold out until I got my hands on a
Dracon beam. It's more devastating, apparently doesn't need to be reloaded very often at all (I believe something along the lines of a power cell was mentioned), seems to be more accurate (A beam of light/particles vs. a piece of lead), easily replaceable during raids, and most importantly,
it would maintain anonymity and secrecy. A normal gun is a dead giveaway as to being human.