Played a couple of the standard team deathmatch games. Seems alright, nothing special though. I will stick with it for a bit but nothing has particularly grabbed my attention so far. A few questions I was wondering if anyone could answer:
1. Do you ALWAYS have to respwan in your base right at the back of the map? It's a right pain when you die and you have to spend ages trecking all the way back to where the action is.
After bleeding out you have an option to change your spawn location (Usually 2 options), in some game modes you have a third option after taking down the AA Battery then you can fly/parachute in. ADVICE - Don't bleed out and ask someone to revive you
***!Always chose the medic upgrades at first!***
2. Why do you have to wait to respawn when you die? Why can't you just spawn straight away?
Because this isn't COD! 
A lot of games have respawn times, it's annoying when used to games with none but even on COD Hardcore TDM there's a respawn time.
3. I chose to go as Raven. Does it actually make any difference which team you choose?
On the hole, not really. Maybe you'll find on some kind of basis that Europeans and hi-tech wanna-bees tend to chose Raven. Americans some British and those who want a more current NATO force feel go Valor and a lot of those who played the IGN tournie, want to be unique (But really aren't 
) and has been playing MAG more than you go S.V.E.R.
4. Can you unlock new weapons and attatchments, and if so how?
In the barracks, you get 1 point for every time you level up.
5. Every single game I have played so far has been on the same map (one with a large bridge over the middle). I'm guessing there are more maps? How do you play the different ones?
There's a total of 15 maps, but a lot of variation depending on which side you are and which spawn point.
A question for anyone who got the Collector's Edition:
When I redeemed my code in the Playstation Store it gave me a list of what was included. There were 3 dynamic themes and the Collector's Edition bonus pack which contained new armour/costumes. I clicked OK on each one and it took me through to the download page. However, on this page it only offered me the 3 dynamic themes to download, no sign of the bonus pack. I cannot find the bonus armour in game so they definitely havn't been downloaded. Has anyone else had this issue?
Not an issue, go into the game you'll see them there
Cheers