Its not a job you will just get my emailing and faxing a resume, then they call you up.
It is a small community, with a lot of people that send in resumes trying to get into it. But to get a job in it, you will have to talk to those companies "face to face" and give them a reason to hire you.
A&P is extremely attractive to them. Its not impossible to get on without it, but one is at a disadvantage.
Doing more to educate yourself about wildland firefighting is a good idea. Doing the basic classes to be certified gives you fair amount of knowledge that you would not have had otherwise, and does show some motivation to learn about wildland fire. Some fire departments and community colleges give it for really cheap. I did mine at the Colorado Wildfire Academy in Alamosa.
I spent last summer on an engine crew to increase my qualifications and knowledge. Even though it was a ground pounder job, I learned quite a bit from it. Volunteer fire department is not a bad idea either, if you are serious about getting into fire supression.
Finding an air attack/recon summer flying job is a good way to get experience also that will carry over into tanker flying.
I do not have an A&P, but I do have a summer as air attack, have taken wildland fire courses, am taking fire science classes, and have a summer as a wildland firefighter.
Turns out one company tried to contact me this summer, but lost my resume...arrggghhh