From: Bratislava, Slovakia
Hi, the designation of the Task Force and Task Groups were used in RL. They were usually a tactical groupings based on a specific mission.
TG 61.1 - Air Support Force (Saratogas Unit, Enterprise Unit, Wasp Unit, Fueling Group)
TF 62 South Pacific Amphibious Force
TG 62.1 Convoy (Transport Group X-Ray for Guadalcanal, Y-Ray for Tulagi)
TG 62.2 Escort (Australia, Canberra, Hobart, Chicago + DDs)
TG 62.3 Fire Support Group L (Vincennes, Quincy, Astoria + DDs) for Guadalcanal
TG 62.4 Fire Support Group M (San Juan, 2xDDs) for Tulagi
TG 62.5 Minesweeper Group (5xDMS)
TF 63 Land Based Air, South Pacific Force
In game it can help player to keep track of his units. Eg. TG 38/58.1-4 for carriers, .5 for oilers, .6 for replenishment carriers, etc. TG 77.1 for SCTF, TG 77.2 for Fire Support, TG 77.3 for MSW, TG 77.4 for Assault shipping, TG 77.5 for supplies, TG 77.6 for garrison troops, TG 77.7 for naval auxiliaries, etc.