Vertigo and Firehawk to Command Center level

"At what level of a Command Center do pros manage to research their 500k RP bomber unit?"
for "pros" it's possible to have bombers within the first 24 hours, but for most "experienced" players it takes about 2-3 days (depends a bit on starting tactic). command center is mostly arround lvl10-12 while researching.
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"How do you get there, by farming outposts or farming bases?"
both possible and a bit hard to say... for my part i prefer killing bases on worlds without moral (because you can dig towards lvl17-18 bases without losing the start shield and maybe even kill some lvl19-20 bases in range) and farming outposts on moral worlds.
the thing with both is you need to do it in an effective way. for example an outpost needs to be a one hit and give about 30-50k rp.
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"Thanks in advance as I haven't really played the game normally in 1 year or so. Never researched the bomber recently on a regular world much less a 2nd base. "
with a bit training it's without problems possible to settle your 2nd base without the first 7 days (my record is around 3days with "special starting conditions")
it's heavy outdated and would need a bit of correction at some points but maybe this thread could help a bit for newer players
https://forums.ea.com/en/commandandconquer/discussion/108862/opasmashs-startguide#latest

i just want to mention that i'm not one of those "pros", before i get killed by one of those guys because of talking bs :D

when you research the bombers/2nd base is a bit hard to say without knowing what exactly you're doing...
first of all, yes it's possible to research them tomorrow but to join an alliance would maybe a big help and on long therms a must have, even if it's not one of the top alliances. for example if you're not killing bases you need more offenses to activate tunnels effective (every offense 4 tiles around tunnels give 20% chance to spawn an outpost per hour) and you have much bigger territory to play with, beside that maybe someone could give some instant help on questions (the forums doesn't have really much visitors, beside all the guys which cry about everything the devs do :P )

i try to explain the way i go when starting a new world and i try to keep it short ^^ (maybe some training is needed because it's a bit risky and buying cp help to speed this up)....

1. on start of the world follow the tutorial quests until you reach the quest for researching support weapons. you get some crates and ressources for it which help to start.
2. get rid of useless buildings like the 3 refineries, repair and def buildings and exchange them for production, command center is needed for collecting rt so it's the only "main" building which is really needed all the time. 1 accu + 3-4 powerplants should be enough for power at this moment, rest buildings will be harvesters and silos. on the first 8-12 hours (depends a bit on layout) just try to get as much tiberium as you can get (the green stuff), after a few hours you can get around 20-25k tib/hour which is enough to get a decent lvl for you command center (lvl9-10 should be possible after the 8-12hours). after this change tiberium production to crystal (the blue stuff) 15-20k crys/h should be enough to have a few lvl8-9 units in your army after a few hours (maybe just go to sleep and wait until the next day).
3. after building your army, sell the harvesters and silos, exchange them for refineries/powerplants, and start killing some stuff (repair buildings are just needed while killing stuff, exchange them for refineries when taking a longer break). if killing bases or outposts doesn't really matter, what matters is the output. i won't talk about ressources but if hunting for bombers outposts should have at least 40-50k rp per hit (if i'm not wrong lvl13-14 outposts should have that amount so about 10-12 of them would be enough), when killing bases you need the same amount of rp per hit (at best don't hit with more than 20cp per hit to get as much shots as possible!).

Thanks. I started playing today 7 am local time on Tiberian 53 and didn't start shooting outposts until 7 pm, local time. I got around 132K RP, do you think I can obtain Vert/Hawk by the end of the next day?
I have a lvl 9.3 army and couldn't shoot bases yet cause I don't have a proper alliance and am in the North East Sector. I'm also using a 2nd account to play as the other faction...

I'm not a pro either, as I struggle a lot at racing to research Vert/FireHawk. I also never managed to properly used Orcas and Cobras in a long while. I think I got it once on a world 2 years ago or something...

About the FIreHawk/Verts, nearly got them tonight, only lacking 24K RP for Nod and 10K RP for GDI. I hope to join an alliance soon as I need to look for layouts within the territory of an alliance whilst calling their attention for potentially good layouts they might want to use.

I don't think I should be getting rid of the repair buildings as I have level 9+ repair buildings and a level 11 CC. Right now my army is 10.3 in its levels; I sold majority of my harvesters, only leaving 4 with 2 silos.

I'm currently in the NE sector of TIberian 53. Have you heard of the Chaos Team alliance, what are they like? I recently messaged the CiC of their wing 11 hours ago. No message related activity so far...

Small update, I now got the Vertigo/FIreHawk and am now waiting for my 2nd base... I even found the layout whilst I'm in a small alliance; I'm playing on 2 accounts, and they're in the same alliance in Tiberian 53. If one is to be invited, it will not do. I have to get both into the alliance so I can effectively scout out layouts for my alliance to take.