(c) The Germans might appreciate that assault divisions would not be carrying their full scale anti-gas equipment. (d) The Germans might hope that the use of gas during the early stages of the operation would present Allied Commanders with such administrative and logistic problems, that the Allied build-up and penetration might be delayed, and the Allied advantage of tactical surprise largely offset. The German counter-attack would thus have better prospects of success. 7. There are, however, the following reasons why the Germans might be deterred from using gas:(a) The Germans may appreciate that their own difficulties in bringing gas into action at the right time and place would outweigh any advantages.