Some questions for those picking up the game and who have played the first one.
1. Is there Titan customisation like the first game? Different chassis, different weapons, different abilities. Or is it pre built hero Titans like from the beta ?
The Titans do not have weapon loadouts that you can change. It is much.more "hero" like, but they do have some customization. For example; you can use one of your slots to give you an extra boost.
2. Is Attrition a full mode available on all maps? Is it the same as the first version or have they 'improved' it?
Attrition appears unchanged. It appears to available in all maps
3. Any of the original Titan weapons in the sequel? 20mm cannon, quad launcher and triple threat for example ?
40mm seems to be the only one that returned
4. How is the pilot customisation?
This appears to be pretty indepth compared to the first Titanfall. Weapon loadouts can be changed, skills can be changed, attachments for weapons can be changed. They also have weapon skins.
5. How many multiplayer maps are there and are all modes playable on all maps?
I believe there are 9 maps at launch. Future dlc maps are free. All modes appear to be playable on each map
6. How many modes are there?
Attrition
Last Titan standing
Pilot vs pilot
Amped hard point
Ctf
One on one arena
Free for all
I might be missing one.