.TH Concept Bunkers
.s1
Bunkers provide an additional level of military defense against 
bombing raids and sector attacks.  You construct and enlarge
bunkers by using the \*Qharden\*U command on a sector or
range of sectors.  A bunker's size is equal to the number
of military it can contain, up to a maximum of 255.
.s1
When their sector is under bomb or shell attack, troops 
quickly head for the bunkers, filling them to capacity if 
necessary, leaving (hopefully)
little or no infantry to fend for themselves on the surface.
The level of protection offered by the bunker depends mainly
on the type of attack.  Shelling or strategic bombing of the
sector will weaken a bunker, but will not harm its occupants.
For example, if you have a 60 mil in a sector and a bunker 
that can accomodate 50 of them, a 40% damage strike against
the sector will be calculated as follows:  50 mil take 
shelter in the bunker, and will suffer no casualties;
the remaining 10 mil will suffer a 40% loss, leaving 6 mil
outside the bunker, which gives a final total of 56 mil
in the sector; the bunker itself will then sustain 40% damage, 
reducing its maximum capacity to 30.  Had the bunker not
been there at all, the total military losses would have
been 24, and only 36 mil would have been left in the sector.
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A pinpoint bombing raid directed against the military in
the sector may devastate the soldiers on the surface, but
will do only collateral damage to the sector and the bunker,
and do no damage at all to its occupants.  A pinpoint raid 
directed at a bunker can do substantial damage to the bunker 
and its occupants, but only collateral damage to the sector and 
military on the surface.  
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As a country increases its tech level, bunkers are automatically
reinforced.  Each bomb that scores a precision hit on a bunker 
multiplies the current damage percentile by an additional 
factor equal to 50/(50+tech).
The national tech factor is applied equally and automatically
to all bunkers in that country; bunkers are not locked into 
the tech at which they are built.
.s3
See also : harden
