Time to update this a bit. I've decided to start using the Supreme HQs war diary as a source from now on. Doesnt go in as much detail, but gives a good overview.
I also start including Google Earth maps with as many places marked as I can find that are mentioned on the pages of the war diary. Note that the marked locations are approximate.
The translation and finding the different places takes time, so dont expect this to be updated very frequently.
2 December 1939 - DAY 3 of Winter War
Karelian Isthmus
II Army Corps
Delaying battles continue. During the day enemy managed a minor breakthrough on Vammelsuunjoki - Sahajoki - Kajavalammet line defended by Group U. This attack was driven back. In the evening Group U was given permission to retreat to new positions on Rieskjärvi - Vammeljärvi - Vammeljoki - Suulejärvi line.
Group M countered enemy's attack to their positions in Ahijärvi. However, the group was later pulled back to Pamppala - Jaarila - Tarpila line, from where the Army's line continued through Nirkkola and Rampala to Aholampi. The enemy suffered great losses on the Ahijärvi - Vuotjoki line and in the area of Lautsilta and Vammelsuunjoki
Ten enemy tanks were destroyed in Ahijärvi, eight in Vammelsuu.
III Army Corps
Group R's defensive line was Orjasaari - Rautu - Raaju. The enemy attacked heavily against this line, especially from the direction of Pirkkolanmäki where it had at least 30 tanks. These attacks were stopped.
South of Taipalejoki, attempt was made to recapture lost positions in Umpilampi. This was not achieved.
White = II Army Corps, Yellow = III Army Corps
IV Army Corps
Information received yesterday and today shows that two strong enemy formations are moving towards Suojärvi area. One from Hyrsylä towards Suvilahti, the other through Naistenjärvi to the north of Suojärvi. From the beginning IV Army Corps' actions have been seen as careful and passive despite being instructed to defend more rigorously. In HQ's eyes, the IV Army Corps have given too easily to enemy's pressure and thus retreated from Tulemajoki, Suvilahti and the north side of Suojärvi. Further information received during the day indicates that enemy has advanced to Aittojoki, north of Suojärvi. Supreme Commander has ordered IV Army Corps to attack and push the enemy back behind the border.
North Finland Group
Commander of the group informed HQ that his forces could push back the enemy, if reinforcements were received. HQ responded by instructing to begin planning the counter-attack and promised all available help.
***
Suvilahti burns. December 2 1939
Daily losses: 84