Preliminary Examination: Thanks in part to his experiences with the tamed Phase-Tigers of the Catachan 813th, Magos Biologis Saren was highly successful in his research into Phase-Tigers. One of his first discoveries is that some Phase-Tigers, generally those who are older and more experienced, can phase part of their body in or out of reality at a time. This makes them significantly more dangerous as it reduces the area that is vulnerable when they are attacking. He also discovered that the amount of time it takes to Phase in or out seems to decrease with age and experience while the maximum amount of time that can be spent Phased seems to increase. One of the more interesting discoveries that Saren made was that there are over a dozen different breeds of Phase-Tiger, each of which uses a sightly different form of Phasing, which means that void shields tuned to stop one breed might not stop others and that the other characteristics of Phasing seem to vary with breed. For example the Western Phase-Tiger is far more capable of partial Phaseing than other breeds, but cannot remain Phased for as long.
[*]Detailed Survey: This year, after several years of study, Magos Biologis Saren handed in his report on the Phase-Tigers. He tells you that there are five major breeds and an unknown number of less numerous breeds. The different breeds are all part of the same species and can easily interbreed leading to offspring with a mix of characteristics, several of the less common breeds are mixes of the major breeds. The most common breed is called the Common Phase-Tiger and is considered the base-line in every way, the Phase-Tigers tamed by the Phase-Tigers are members of this breed. The second breed is the Southern Phase-Tiger which is smaller then most Phase-Tigers and is capable of staying Phased for longer then any other breed but is slower to Phase in or out. Third is the Northern Phase-Tiger which is the largest breed, averaging around seven hundred kilos, and is far less visible when Phased but slightly less capable in the other aspects of Phasing . Fourth is the Eastern Phase-Tiger which is capable of Phasing far quicker then any other breed but at the expense of the amount of time it can spend Phased. The final major breed of Phase-Tiger is the Western Phase-Tiger which is more capable of partial Phasing then any other breed but otherwise has inferior Phasing capabilities. From what Magos Biologis Saren can tell each breed of Phase-Tiger Phases on a different wavelength and void shields can only be tuned to keep a single breed out at a time. However by making sure that each city has void shields tuned to keep out the type of Phase-Tiger most commonly found in the area which should reduce deaths by a significant amount.
[*]In-Depth Examination: Magos Biologis Saren's efforts to determine anything new about the Phase-Tigers Phasing were ineffective and he has come to the conclusion that he is running up against the limits of his knowledge. While his understanding of Biology and its effects his extensive Avernus lacks a similar expert in the Warp, at least among the Adeptus Mechanicus.
[*]Magos Biologis Saren's attempts to tame and breed Phase-Tigers were far more successful and he has managed to tame at least a few breeding pair of all of the major breeds. Even better he has found that the high level of intelligence that Phase-Tigers posses, by animal standards anyway, allows them to understand more complex commands then other domesticated animals. According to Magos Biologis Saren there is no reason that forming a large population of domesticated phase-Tigers would not be viable and work could begin on gathering one as soon as next year. It will take a while for this to have major effect however as it has proven to be necessary to raise a Phase-Tiger in captivity if you want to tame it and it takes three years for a Phase-Tiger to reach maturity.