Before I start, I see that Ichinoseki has a strong chance of flipping to Takeda (2% each turn) and I cannot see what I can do about it (size 1 and CrpMapStats says I would need 47 units as garrison).
Jan 1508 (1)
I Start moving toward Chiba.
Kill Hojo xbow near Ashikaga.
IBT
another Hojo xbow appears near Ashikaga
Build a worker and a bushi
I start TGWall in Nagoya as I think we can time it so it is completed a few turns after we switch to feudalism.
Apr 1508 (2)
Kill a Date ashigaru
Jul 1508 (3)
Kill another Date ashigaru, the Hojo xbow resists to the attack of a bushi.
IBT - horseback riding -> feudalism in 6t
Oct 1508 (4)
Kill the Hojo xbow, but that slowed down my attack force toward Chiba.
We have horses near Miyako, just outside our borders.
Jan 1509 (5) - Finally, I get my first kill losing 1hp!
Apr 1509 (6) - Kill 2 ashigaru using bushis and decide to save my daimyo for enemy daimyo.
Jul 1509 (7) - I see that there are a lot of ashigaru in Chiba! I kill 1 ashigaru with bushi, lose 1 bushi. Since I am running out of bushi, I decide to kill the xbow myself getting a MGL.

There is still 2 ashigarus, those wounded by bombardment.
I stop here for now as I do not know what to do with the MGL. I am also in a situation where I do not believe I can finish the Hojo before the end of my turn. After my attack on turn 7, my attack force contains the following:
2 bushi (2/4), one has not attacked this turn.
1 catapult
1 stone xbow (4/4)
Daimyo Oda fbouthil (3/5)
On turn 10, I will have 2 more bushis (and Daimyo Oda Detlef Richter) ready to attack Chiba.
So, what should we do with the MGL?
Any suggestions about how to get Chiba faster? Should I risk the wounded bushis & attack with the xbow instead of bombarding?
Should I bring bed_head7 next to Hojo territory as I cannot even finish them?
Note that the 3 other daimyos are next to the Date city ready to attack it, but I am too stubburn to break the variant and attack with them. I was actually positioning bed_head7 to attack him on his preturn (I thought I could finish the Hojos on my turns).
I will finish playing tomorrow night.