Fracture has ropes that can quickly take you from one side of the map to the other. If you press shift at the end of the rope, you make no noise. Otherwise, enemies in defender spawn can hear you take the rope.
Fracture has 4 main choke points. The choke points are created to give defenders easy angles to hold but also gives the attackers a strong ability to default or throw fakes.
Breach is one of the strongest initiators on Fracture since all of his utility covers majority parts of the map. Skye is another recommended initiator.
The best sentinels on Fracture are Killjoy and Cypher as their utility can hold an entire site on their own. Cypher's trips can be better for flanks on offense.
Brimstone typically has the best smokes for Fracture but be careful not to waste them too early in the round.