Strategies:-
Spectres are well known for their ability to launch deadly Nukes. Each nuke could have a damage of around 950-2250. Yes, very deadly but the unit that launches it is usually the primary target in all battles. As soon as a nuke siren is heard, all populated areas will scramble for cover. The nukes cause wide-spread damage to all nearby units and also damages all type of units. The nuke however can be countered by using the special ability of a Liche, the IRBM defense.

IRBM:-
Each nuke of every Spectre takes 5 minutes to charge successfully. The effect of the nuke is deadly as everything within a radius of 15m will be hit, taking lesser and lesser damage as it goes further. But the point where it hits will take the full amount of damage. For a H-Talon Nuke, which causes around 2100+ damage, 7 of it is enough to destroy an entire fleet of Condors or Mephits. But, IRBM missiles do not follow the target. So, as long as you are more than 20m away from the point of contact, the damage inflicted on your units would be less great. Nukes can also be used to take out large quantities of enemy units to clear the way for the capture of the PoC or to save the battle. Since 7 H-Talon nukes can possibly destroy anything, it is very useful to destroy a large armada of troops on your own PoC. But remember, do not nuke your own units as you are wasting 5 minutes everytime you nuke the wrong place or wrong unit.