Well, he usually just dodges that stuff, as for the rockets from rocket launcher, he either has rode the or cut them apart without making uit detonate.
http://www.devils-lair.org/cutscenes/dmc2/10%20-%20M5%20-%20Infested%20Tank%20Intro.avi
Dodging tank shell. In DMC2 he faces demonically posessed tanks and helicopters.
http://www.youtube.com/watch?v=TEi3Gwi09kY
Dodging rocket
http://www.youtube.com/watch?v=_FQoUuzlCms
Surfing on rocket
http://www.youtube.com/watch?v=euaLjELg_eQ
The elemental power of Ifrit tried to explode him...but he took it OK and was fine.
Talking speedwise, when was Fox ever clocked at Max speeds- cause one of top Dante's running feats (with chasing his own bullets and approaching reentry speed) includes it.
http://www.youtube.com/watch?v=TmHdLB6f5A8
As for combat speed, a couple of feats can already be shown- I'd also add that (though that's because of a speedboost provided by Alastor sword- Dante doesn't use his time manip power, yet shards appear suspended in the air from his point of view). He swings that combo on superspeed minute after having totally regenerate his heart, BTW.
http://www.youtube.com/watch?v=p_1kETIVweo
And if you'd like to talk about force of hits, darling, I'd LOVE you like at that... and then imagine your precious Fox instead of hellgate.
http://www.youtube.com/watch?v=ti_BfKdYWNw