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tacops

n. 1 (context US military English) (abbreviation-old: en) of tactical operations 2 (context US military English) (abbreviation-old: en) of "Tactical Organization Paperless Service Support System".

Wikipedia
TacOps

TacOps is a turn-based wargame originally released in 1994. The game, developed by Major I.L. Holdridge, USMC (ret), details modern, hypothetical combat between U.S. and Canadian troops versus the OPFOR who are armed with various equipment from across the globe. Instead of typical hex or square based movement, the forces move around without a grid. Players take turns giving orders and then watching the battles unfold on the map. Also, players cannot directly control where their troops fire, but rather control parameters such as fire zones, and range of engagement. The game is considered very realistic, and includes a database with information and photos for all of the units in the game.

Game play is divided into two phases. In the order phase time does not pass in the game and orders can be entered. During a combat phase these orders are executed and the player can only watch the results as 60 seconds of game time passes.