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Swgoh farming flowchart

It looks like you found a fleet battle you need to get to, but aren't quite equipped to take on yet. Below is a list of ships that match up with early farmed characters, that could provide you a considerable benefit in getting further in Fleet Battles.

1) Ghost
2) Phantom II (this does require Sabine Wren to be unlocked, but you don't need to invest too much in her gear or shards to make Phantom II solid.)
3) Biggs Darklighter's X-Wing
4) Wedge Antilles' X-Wing
5) Cassian's U-Wing
6) Slave 1
7) Jedi Consular's Starfighter
8) Geonosian Soldier's Starfighter
9) Geonosian Spy's Starfighter
10) Sun Fac's Geonosian Starfighter

These ships all line up with characters you'd be recommended to farm a little earlier in the game, so they should help you boost your fleet strength and work through some of the more challenging Fleet Battles earlier on.

If you're having trouble getting through chapter 5 battles in the Fleet Battles, these are extra hard, and will likely require top ships like Han's Millennium Falcon. There are a handful of various guides and videos available on the internet for each specific node, so if you're not ready to unlock Han's Falcon yet, check around to see other potential strategies that could help!