about the atc
*speed restrictions above and below 100 which quite frequently can be heard thru appcon and center during the real time.
*connected to that atc can verify and ask or request our vertical speed which can be critical sometimes both in real time and fltsim.
* atc must verify a/c s request t/off from a rwy which is other than the assigned one like in real time.
*sorry I may have missed a point ,I can pback but cant give a nose direction if someone knows how to do pls would u email to firstname.lastname@example.org .pushin the buttons 1 2 doesnt help let me tell u.
*atc center may request a lvl chng due traffic which also very common in real time.