Thanks for the great response. It is several leaps around, but makes sense and is appreciated.
I don't mean to get into anything resembling an argument. I now believe that you are correct from your logic, I think I was just confused due to poor wording which I will try to explain in regards to your points.
1. Agreed, 'anywhere' doesn't lend enough to either side
2. pg 121 'within 12" of the center line' Remember the diagram on page 4, the space marine is 'within 5" of the trukk' which means that a fortification butted flush along the edge of deployment qualifies for the 'within 12" of the center line' this just means that scouts can move into buildings during a redeploy which brings them closer than normally allowed to an infiltrating unit. In other words, I place my army on one edge and you infiltrate a unit right behind a building, well then I can redeploy my unit into that building, even though you are right against it.
3. Agreed, the rules to deploy an infiltrator are clearly written and it is clearly given as an exception to the normal deployment - this is in fact one of the main reasons I read it the other way, they so clearly defined the exception in this instance that to not include it with the scouts seems intentional.
4. In terms of the first turn charge, this can happen even without scouts if your opponent infiltrates really close to you - this just negates a scout move from getting that bounce towards a unit. Regardless with a potential 18" scout move for normal troops, it is easy to charge a unit which is potentially only 12" away.
5. I like this one and actually failed to consider it totally.
Regardless, thanks for the kind and well considered response. At the end of the day I do find the rule confusing and I don't intend on doing it, I just read everything very literally and to me, without the extra digging that is how it literally reads. I just really wish they could have added a quick sentence just stating clearly that they could go outside of the deployment zone.