Firstly: Dan I freaking love you, that was brutally funny especially since I pictured it in your voice and all.
The game is only 5 hours or so when you're not trying to piece together the sub quest for the communications data. I've so far found 25 or so communication files out of a total 30 in the game, to get the next achievement I must find the next 5 in this playthrough (hence people you see me wandering campaign on easy, there is no point attempting to go through on heroic or legendary for this since I bump in to constant enemy patrols and snipers on roofs whilst hunting down the computers) The communications data tells the story of a 19 year old girl called Sadie who is the daughter of the superintendent's caretaker or something like that basically he works in close unison with the citíes AI system, it takes place during the initial covenant assault on New Mombasa and basically features her events which include being the victim of attemted rape by the police commisioner, who strangely just keeps comming back again and again it's actually ridiculous but I will complete it because I am a freak about getting things completed.
In doing this pointless sub quest from the game I've found several cool things, ofcourse most will know about the dead Elites in a couple of places however I also found 2 Engineers with no Brutes nearby (they're in a garden like room between 2 buildings where there are dead Elites in the grass) this leaves them invincible and kinda fun to use for target practise. I remember Paul and Dan were shooting at the Engineers in campaign when we went through whilst I ended up blowing up the Brutes nearby, I will tell them this here, don't bother just kill the Brutes (who viciously have an overshield so sticky tactics work well) and the Engineer self destructs giving you the kill. I have the Naughty, Naughty achievement but I am not sure what the Good Samaritan achievement requires me to kill, I have killed by now tons of Engineers as my big search continues I know that it cannot be these things, the only other new things I've encountered were a upgraded leader of the flying buggers what had a shield and plasma rifle during Data Hive and a gold armoured hunter leader (urgh I believe he also had a shield, still died in a couple of sticky grenades however so not so bad) I can't see them wanting us to kill 20 of these new leader units since they appear so rarely and the kills generally have to be in 1 playthrough of the game/mission. I've also unlocked many caches now, some contain just the usual SMG, Mag, Frag combination however some I have found contain other weapons I now have access to caches including missile launchers, sniper rifles and mongoose quad bikes. I've so far only encounted 2 Hunters in the streets of New Mombasa which is disappointing as having them pop up makes for an interesting fight especially if I've got low ammo in my guns from not having visited a cache in ages or having used covenant weapons to take out multiple patrols.
Oh and Firefight is awesome, I've not done as much as the other two (Paul and Dan ofcourse) but then they've not spent as much time exploring New Mombasa as me so fairs fair, I believe Paul has at the moment 5g more from this game than me and I can pick that up easily enough. I love the Firefight mode but the other day when I couldn't just hook up with Dan and Paul in their 4 hour session of Firefight without ending it kind of sucked I think it'd have been awesome if Bungie included some way of someone joining on invite at the end of a wave/round of combat just in that quiet time have the game announce "Friendly Reinforcements" and the new player join in since currently a streak has to be ended to get further friends involved. Anyone who accepts invites to firefight mode and is waiting for the friendly reinforcement spawn could merely hang around watching the round currently taking place that'd be pretty sweet in itself.