I posted about this before, but it's worth repeating----

Playing as the British, one has two challenges in the Americas early on. One will be the pirates, and one will be securing the colonies once the mission is given. If you so decide, one can take Georgia within the first 5 or 6 turns by using the small fleets and forces already available in the Caribbean. Build a couple of line infantry units in Jamaica, combine them with the units already in the Bahamas and take Georgia. (BTW, I immediately disband all pikemen on the first turn. I would rather have missile troops and there is no point in maintaining the support cost of pikemen whom I don't want to use. )

If one plays like they are unaware of the "secure colonies" mission until it is given then dealing with the pirates is probably the first choice.

The secret to dealing with the Caribbean pirates quickly is not to fight their fleets, but instead take their two island capitals--one on the Leeward Islands and one on Trinidad. By combining your two small fleets in the Caribbean, combining the 4 units in the Bahamas and adding 3 more units that you build on Jamaica, you can take both pirate capitals by the end of 1702, or within six turns.

Bingo, the pirate fleets disappear, you have two new regions in your possession, and an army capable of landing in Georgia and taking on the Cherokee by 1705---all without sending a single ship or unit from the British Isles. Of course one may also send over troops from the homeland just to make all of this easier.

A third challenge that will occur later can also be dealt with early on and that is to build up Rupert's land to deal with the eventual DOW from the Hurons. To help with this--build the military governor's capital rather than the standard capital upgrade when you are given the choice. Given that this area is never going to be overly developed, the military type capital will give one all the higher level military troops they will need to easily defeat the Hurons and maybe send an expeditionary force to take Quebec and Montreal.

The only issue with using the the first two tactics is that one leaves the troop producing capitals undefended by regular troops for a period of time. Once the developers re-instate seaborne invasions and according to how wide spread they are---leaving any island capital undefended may be hazardous.