@PattonTwo:
One more thing regarding warring here: axes tend to be bad choice on immortal (even on emperor) unless you have AI very near (here Gandhi was too far away for that). If you can't do immediate axe rush with max 2 cities, it tends to get very costly even if you have some swords along. At that point culture defences are often 40% or more and archers/possible axes are hard to kill, especially on hills. Phants are lot better already but if you have them you also have cats which are superior in vanilla.
In this game I went for fast IW but not for swords or iron. I just wanted to get rid of the jungle on gems.
Also, it's usually a bad idea to start warring for just one or two cities after which you go for peace. That way you give your enemy too much time to prepare for the next attack. Instead, when planning for war, you should aim to either crush your enemy completely (often the case in lower levels) or cripple them down to one or two cities and then get peace for techs (happens at higher levels where AI can actually be ahead of you in tech).
Here's a basic recipe I've found to work well on "normal" vanilla games up to immortal:
- Settle at least 4 good cities asap, more if you have plenty of room around you. Each one should have at least one good food tile and some hills available. Commerce and happy resources are nice bonuses.
- Get the necessary worker techs to get those cities running.
- Beeline Construction. You can even forget Oracle here if you don't want to gamble it.
- Try to build at least granary and barracks in each city and pre-chop forests while doing the research. Once you get Construction, your cities should be at the happy cap or even bigger.
- Whip & chop 10+ cats fast. 2 pop whips are great here as you can get basically 2 cats out in 3-4 turns from one city with only one whip. Get also few stack defenders, either 1-2 phants if you have them or axes if you don't have. If you don't have either, even few archers will do.
- Once you have a SoD of 10-15 cats + 1-2 stack defenders ready, go get some cities from your chosen target. Aim for good wonders (GLH, Mids) or good land to get your economy back afloat after the war. You should be able to conquer some cities before the ADs.
- Keep building cats also during the war unless you know you can finish the enemy with current forces and don't want to continue warring after that.
- Get economy running with repre, caste, Currency, GLH and such.
- Win the game as you should now be #1 in land and population.
Another basic style would be to tech/bulb your way up to cavalries and wage war with them. Choosing the strategy really depends a lot on how much room you have available for peaceful expansion and how soon you can suspect the AIs to attack you if you don't attack them first.