Before people finalize their mech selections, which version of the targeting computer rules are we using? Total Warfare eliminated being able to use TCs with pulse weapons and cluster ammo. The note below is from the Battletech Wiki on it.
Game Notes
The Targeting Computer can be used to help aim all direct fire weapons, including most energy and ballistic weapons. This results in a -1 to-hit modifier for all eligible weapons that tie in, or the ability to aim for a location that is not the head with a +3 to-hit penalty. Clan Targeting Computers weigh one ton and occupy one critical slot for every five tons of equipment they control (rounded up), while a comparable Inner Sphere version weighs one ton and occupies one critical slot for every four tons it controls (also rounded up). Total Warfare updated the rules to specify that Pulse Lasers (including Variable Speed Pulse Lasers and X-Pulse Lasers) as well as multi-shot firing autocannon cannot aim their fire, unless the affected autocannon are fired in single shot mode. In addition, an LB-X autocannon only receives the benefits if it is firing solid rounds instead of cluster ammunition.
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