Change interact from F to F1 to avoid accidently ejections, then change grenade from G to F that way switch target. (which is G) doesn't interfere with grenade tossing for BA)
As a old halo player my intereact key is E and 3 actually changes my grenade type but that's because i use G,H,J,V for firing weapons in aerospace and vtol.
request for a tip, how can I use the fire bombs correctly? I have no idea how I can hit a mech/tank (even did a 90 degree bomb-run on a mech, released the fire bombs and nothing happened.
Firebombs retain the momentum of the vehicle from which they are launched, but as you'd expect they fall with gravity. They are a bit tricky to get the hang of, but the easiest way to get up to speed with them is to do diving salvos against ground targets, coming down on them nearly vertically. Release your firebombs just prior to pulling out of your dive. If you time it right, the bombs will "continue on their way" into the target. If a target is moving, you will need to compensate by placing your bombs slightly in front of [its] current position.
I find firebombs very hard to use on Extremity (tend not to use them on that map, actually) since gravity doesn't work in your favour.
The other way to use firebombs is to skim the ground at about 30m and release your bombs as your target is masked by the nosecone of your aerospace and then pull an immediate bank & pull-up to get out of the blast zone. This tends to place the bombs firmly in somebody's lap. You'll know you've hit if you hear the "thud" of the Crysis hit indicator, with Light 'Mechs you usually will see them die...
I find it works well if you dive bomb your targets pulling up to avoid the top of your target or a hill.
Point the nose down a little so your reticule faces your target then when you get close say 200M let the bombs go it should hit them if not destroy them
I have been able to drop a fbomb on the head of a mech and cored it ,but that was once XD.
Make sure to pull up before the bombs hit or you'll be caught in the splash, though if you can survive til the runway you could shutdown to repair.